37 results on '"Agenesis"'
Search Results
2. A rare cause of deep vein thrombosis: inferior vena cava agenesis
- Author
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Pablo Del Canto Peruyera and Manuel Javier Vallina-Victorero Vázquez
- Subjects
inferior vena cava ,agenesis ,deep venous thrombosis ,diagnosis ,treatment ,vascular congenital anomalies ,Surgery ,RD1-811 ,Diseases of the circulatory (Cardiovascular) system ,RC666-701 - Abstract
Abstract Inferior vena cava agenesis is a rare condition and is often misdiagnosed. This anomaly is asymptomatic in the majority of cases and is usually diagnosed during imaging tests carried out for other purposes. The most frequent manifestation is deep vein thrombosis (DVT) in lower limbs and anticoagulation therapy is the most frequent treatment option. Other techniques such as thrombolysis and venous bypass are also described. We report two cases diagnosed at our institution during the last year, both of which presented with an episode of DVT. We opted for indefinite anticoagulation therapy and both patients remain asymptomatic, after 1 year of surveillance in the first case and 6 months in the second, with no new episodes of DVT. Although it is not a life-threatening anomaly, it is important to make an appropriate diagnosis and provide treatment to improve the symptoms and quality of life of these patients.
- Published
- 2023
- Full Text
- View/download PDF
3. Orthodontic management of a non-syndromic patient with concomitant bimaxillary hypohyperdontia: a case report
- Author
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Ei Ei Hsu Hlaing, Yoshihito Ishihara, Atsuro Fujisawa, Takashi Yamashiro, and Hiroshi Kamioka
- Subjects
Agenesis ,Hypodontia ,Supernumerary teeth ,Dentistry ,RK1-715 - Abstract
ABSTRACT Introduction: Tooth agenesis is one of the most common dental anomalies; however, the concomitant occurrence of opposite dental numerical variation of hypohyperdontia is extremely rare. Objective: To report the successful orthodontic management of a patient with non-syndromic concomitant bilateral agenesis of mandibular canines and two midline inverted supernumerary maxillary teeth. Case report: 21-year-old female patient with a chief complaint of protrusive right maxillary central incisor. The patient was diagnosed with a mild Class II skeletal base, Angle Class III molar relationship and increased overjet associated with hypohyperdontia. Anterior open bite accompanied with tongue-thrusting habit were also observed. Two temporary anchorage devices (TADs) were implanted at the buccal side of the maxillary molar region to control vertical height. Anterior teeth retraction was done after extraction of the maxillary first premolars, to improve the excessive overjet. The treatment mechanics involved lingual brackets system for the maxillary arch and transpalatal arch for anchorage control. Results: The total active treatment period was 35 months. Acceptable occlusion with increased bite force and contact area as well as functional excursion were established without interference, following complex orthodontic treatment with premolar substitution. The resultant occlusion and a satisfactory facial profile were maintained after 29 months of retention. Conclusion: The present case report provides implications regarding the orthodontic treatment of hypohyperdontia-associated substitution for missing teeth as an effective option for improving aesthetic and functional aspects.
- Published
- 2020
- Full Text
- View/download PDF
4. Agenesia de artéria carótida interna
- Author
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Adriano Carvalho Guimarães, Thaís Duarte Baião Pessoa, Ricardo Herkenhoff Moreira, and Walter Junior Boim de Araujo
- Subjects
carotid artery ,agenesis ,intracranial aneurysm ,Surgery ,RD1-811 ,Diseases of the circulatory (Cardiovascular) system ,RC666-701 - Abstract
Resumo A agenesia de carótida interna é uma anomalia rara. Na maioria dos casos, é assintomática devido às anastomoses que podem estar presentes, mas pode estar associada a complicações, principalmente quando evidenciada a presença de outras alterações anatômicas ou doença aterosclerótica grave. Relatamos o caso de uma paciente feminina de 63 anos, hipertensa e diabética, com história de cirurgia prévia para clipagem de aneurisma cerebral. Na investigação através de eco-Doppler e angiotomografia de carótidas e vertebrais, foi evidenciada agenesia unilateral da artéria carótida interna esquerda. Este relato objetiva chamar atenção para a importância de se suspeitar de malformações vasculares durante a investigação de quadros neurológicos. A agenesia de carótida interna tem uma importante associação com aneurismas intracerebrais, e é possível poupar o paciente de graves complicações quando estes são identificados a tempo.
- Published
- 2018
- Full Text
- View/download PDF
5. PULMONARY AGENESIS: UPDATE AND IMPLICATIONS FOR NURSING
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F. A. Pinheiro, L. P. Souza, and E. D. B. O. Algeri
- Subjects
Pulmonary agenesis ,Agenesis ,Congenital malformations ,Nursing Diagnosis ,General Works - Abstract
Congenital malformations of the lungs are rare and vary widely in their clinical presentation and severity, the etiology is unknown in 50% of the cases and its prevalence is 0.5-1.0 for every 10,000 live births, including bilateral forms And unilateral. Clinical malformations are highly variable and can be diagnosed in early childhood due to severe cardiopulmonary dysfunctions. Congenital malformations represent about 11.2% of infant deaths in Brazil, being the major cause of mortality in this category. Understanding diagnosis is a process permeated by concerns. For this reason, important research is done in the area in order to broaden the knowledge about the conduct of health professionals, in relation to the patient with congenital malformation and among them the lung agenesis must be specific and of quality. Thus, nurses play a fundamental role in establishing the quality of care provided with the aim of improving the clinical picture and minimizing the risk of complications to the patient.
- Published
- 2018
6. Anomalias dentárias bilaterais associadas: um caso incomum de agenesia de incisivos laterais inferiores e impacção de caninos superiores.
- Author
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Machado, Andressa and Mota Freitas, Maria Perpétua
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INCISORS ,DENTAL care ,LUTHERANS ,HYPODONTIA - Abstract
Copyright of Stomatos is the property of Revista Stomatos and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2020
7. Aplasia uterina total em cadela com atrofia segmentar de vagina.
- Author
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Araújo Sônego, Dábila, Paula Borges, Ana, Arruda Trevisan, Yolanda Paim, Caroline de Mascarenhas, Lívia, Curtio Soares, Luciana Maria, de Cássia Martini, Andresa, dos Santos Ferraz, Rosa Helena, and Lopes de Souza, Roberto
- Abstract
Background: Congenital uterine malformations are rarely identified in domestic and human animals and are related to problems during the embryonic formation of the paramesonephric ducts. Cases of agenesis and segmental aplasia or unicorn uterus have been described in bitches, but there are no reports of total uterine aplasia in this specie. The report of a case of total uterine aplasia and segmental atrophy of the cranial vagina, accidentally diagnosed is reported herein. Case: An adult female bitch without defined breed in bad general condition was attended in the emergency service in a Veterinary Hospital. During anamnesis the information was restricted because it was an errant animal rescued for the consultation, but accompanied for at least 12 months in the environment in which it lived. Data related to the estrous cycle were unknown, but no gestation was observed in the last year. Investigations detected anemia and intense thrombocytopenia, azotemia and increased alanine aminotransferase. Two days later, with no progression, images suggestive of hemometra/mucometra were observed during abdominal ultrasonography, and the patient underwent emergency ovariohysterectomy despite the general poor condition. Before the procedure the uterus was not routinely identified, but a fibromuscular, nontubular and thin structure occupied the region corresponding to the horns and uterine body, thickening in the cervix region. Death four days after surgery and sent to necropsy. During necropsy it was observed that the vulva and the vestibule of the vagina did not present macroscopic alterations, however there was a marked digitiform narrowing of the cranial region of the vagina, which ended in blind bottom. The mucosa in this narrowing was smooth, without folds. The microscopic structure of the ovaries, uterine tubes and caudal vagina were preserved. In the ovaries it was observed some follicles in different stages of development and corpora lutea, indicating that the animal had already manifested cyclic activity. In the region that corresponded to the horns and uterine body, there was a predominance of blood vessels and abundant connective tissue with sparse bundles of smooth muscle cells arranged circularly, and the mucosa was not observed. In the digitiform region, the muscular layers had decreased volume of smooth muscle cells, rounded cell nuclei and scarce cytoplasm (atrophy), with increased space between muscle fibers. Discussion: Disturbances of uterine malformations are rarely identified in several species and may result in infertility. Other malformations may be present, such as renal and ovarian agenesis. The cause is still unclear, but they are possibly hereditary conditions for recessive genes, identified in different species as humans, and in cattle that may be related to inbreeding, a condition responsible for a higher frequency of expression of undesirable hereditary defects, but not correlated in bitches by the low occurrence. Therefore, the affection in different mammals, besides the clinical and reproductive relevance of the malformation in certain cases, emphasizes the importance of the genetic research of the etiology in bitches and other species so that it can be clarified and avoided. [ABSTRACT FROM AUTHOR]
- Published
- 2018
8. TRATAMENTO INTEGRADO ORTO-IMPLANTO EM CASOS DE AGENESIA DO INCISIVO LATERAL- REVISÃO DE LITERATURA.
- Author
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DE SOUZA NETO, JOSÉ ROBERTO RIBEIRO, IZOLANI NETO, ORLANDO, DIAS CASTRO, SÉRGIO HENRIQUE, and CORRÊA BRUM, SILENO
- Abstract
In order to treat cases of malocclusion due to the agenesis of the upper lateral incisors, orthodontic treatment can occur, aiming at the closure or opening of the spaces; Or, in addition resorting to the installation of osseointegrated implants. This article aims to compare the alternatives of the treatment for cases of lateral incisor agenesis using the existing alternatives in literature and to evaluate the possibilities of the integrated ortho-implant treatment, in order to obtain more satisfactory aesthetic and functional results. [ABSTRACT FROM AUTHOR]
- Published
- 2017
9. Relation between agenesis and shape anomaly of maxillary lateral incisors and canine impaction
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Anísio Bueno de Carvalho, Rogério Heladio Lopes Motta, and Eliane Maria Duarte de Carvalho
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Incisivo ,Dente canino ,Anodontia ,Incisors ,Canine ,Agenesis ,Dentistry ,RK1-715 - Abstract
OBJECTIVE: The purpose was to obtain information about the relation between agenesis and shape anomaly of maxillary lateral incisors and canine impaction. METHODS: Seventy-three patients with canine impaction and 73 control patients, without canine impaction, were evaluated. The mesiodistal distances of the maxillary lateral incisors adjacent to the impacted canines and the correspondent mandibular lateral incisors were measured. The adjacent lateral incisors were classified in: 1 - absent, 2 - small, 3 - peg-shaped, 4 - standard. RESULTS: The results showed that among the patients with impacted canines, there were 21 anomalous teeth (small and peg-shaped) and among the control patients there were only three small and peg-shaped teeth, with a statistically significant difference (p = 0.001). No patients were found with impacted canines and absent lateral incisors. CONCLUSION: It was concluded that in patients with anomalous lateral incisors (small and peg-shaped) there is a probability to present impacted canines and this must be considered.OBJETIVO: o objetivo foi obter informação sobre a relação existente entre a agenesia e/ou anomalia de forma de incisivos laterais superiores e impacção de caninos. MÉTODOS: foram avaliados 73 pacientes com impacção de caninos e 73 pacientes controle, sem impacção de caninos. Foram medidas as distâncias mesiodistais dos incisivos laterais superiores adjacentes aos caninos impactados e os incisivos laterais correspondentes inferiores. Os incisivos laterais adjacentes foram classificados em: 1 - ausentes; 2 - pequenos; 3 - conoides; 4 - normais. RESULTADOS: os resultados mostraram que no grupo de pacientes com caninos impactados foram encontrados 22 dentes anômalos (pequenos e conoides), e no grupo controle apenas três dentes pequenos e conoides, sendo uma diferença estatisticamente significativa (p=0,001). Não foram encontrados pacientes com canino impactado e incisivo lateral ausente. CONCLUSÃO: concluiu-se que nos pacientes com incisivos laterais anômalos (pequenos e conoides), a probabilidade de apresentarem caninos impactados existe e deve ser considerada.
- Published
- 2012
10. Agenesia isolada do corpo caloso - que prognóstico neurológico?
- Author
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Torrinha,Mariana Camanho Lencastre Fleming, Seco,Inês Maria Moreira Guedes Maia Nunes de Melo, and Monteiro,Cristina Maria Conceição Dias
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Counseling ,Neurodevelopmental disorder ,Agenesis ,Diagnosis ,Corpus Callosum - Abstract
Corpus Callosum Agenesis (CCA) is a rare clinical entity. The diagnosis of CCA is mostly made in the prenatal period and includes genetic factors as one of the main causes for its development. Parental counseling is extremely difficult particularly in cases of isolated malformation due to the wide variety of possible clinical presentations. The article reviews this pa-thology with a particular focus on isolated agenesis of corpus callosum and its associated neurological prognosis. The analysis is essential so that parental counseling can be adequately given when this diagnosis is made in the prenatal period.
- Published
- 2021
11. Associação de agenesia sacrococcígea e atresia anal em gato sem raça definida Sacrococcygeal agenesis association and anal atresia in mixed breed cats
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Felipe Purcell de Araújo, Bruno Martins Araújo, Bernardo Kemper, and Eduardo Alberto Tudury
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Agenesia ,região sacrococcígea ,atresia anal ,gatos ,Agenesis ,sacrococcygeal region ,anal atresia ,cats ,Agriculture ,Agriculture (General) ,S1-972 - Abstract
O presente trabalho teve como objetivo descrever o caso de um felino, que desde o nascimento apresentou atresia anal, ausência de cauda e malformação dos membros pélvicos. Ao exame radiográfico, pôde-se observar presença de agenesia da sétima vértebra lombar, sacro e vértebras coccígeas, espinha bífida, meningocele, hiperflexão dos joelhos e desvio valgo dos tarsos, diagnosticando-se agenesia sacrococcígea associada à atresia anal.This paper has the objective to report a case of a cat that since birth had anal atresia, absence of tail and malformation of the pelvic member. The radiographic examination revealed agenesis of the seventh lumbar vertebra, sacral and coccygeal vertebrae, spina bifida, meningocele, hyperflexion of the knees and tarsal valgus deviation, diagnosing sacrococcygeal agenesis associated with anal atresia.
- Published
- 2009
- Full Text
- View/download PDF
12. Tratamento ortodôntico da agenesia do incisivo lateral superior
- Author
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Marin, Léa Danièle Marie and Pinho, Mónica Morado
- Subjects
Ciências Médicas::Medicina Clínica [Domínio/Área Científica] ,Agenesis ,Ortodontic treatment ,Agenesia ,Incisivos laterais superiores ,Tratamento ortodôntico ,Maxillary laterales incisors - Abstract
Submitted by Ana Moreira (anadsmoreira@ufp.pt) on 2022-01-03T15:40:52Z No. of bitstreams: 1 PPG_38383.pdf: 384206 bytes, checksum: 1f098762acab3a0a04e7be3b74d0a75c (MD5) Approved for entry into archive by azevedo@ufp.pt (azevedo@ufp.pt) on 2022-01-04T17:12:32Z (GMT) No. of bitstreams: 1 PPG_38383.pdf: 384206 bytes, checksum: 1f098762acab3a0a04e7be3b74d0a75c (MD5) Made available in DSpace on 2022-01-04T17:12:32Z (GMT). No. of bitstreams: 1 PPG_38383.pdf: 384206 bytes, checksum: 1f098762acab3a0a04e7be3b74d0a75c (MD5) Previous issue date: 2021-07-15
- Published
- 2021
13. MÚLTIPLAS LESÕES DENTÁRIAS EM PACIENTE COM SÍNDROME DE LENNOX-GASTAUT
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Carolina Maschietto Pucinelli, Lisa Danielly Curcino Araujo, Arthur Cunha da Silva, Mariana de Oliveira Daltoé, Heloisa Aparecida Orsini Vieira, Paulo Nelson-Filho, Raquel Assed Bezerra da Silva, and Alexandra Mussolino de Queiróz
- Subjects
Lesões dentárias ,Lennox Gastaut Syndrome ,Agenesis ,Tooth Injuries ,Agenesia ,Síndrome de Lennox Gastaut ,General Medicine ,Dental care ,Atendimento odontológico - Abstract
Introduction: Lennox-Gastaut Syndrome (LSG) is a severe childhood epileptic encephalopathy. Its treatment is complex, mainly due to the multiplicity of epileptic crises, which in turn favors the occurrence of dental injuries. Objective: The aim of this case report is to present the clinical management of a patient with LGS, victim of recurrent trauma, discuss the observed dental findings and the dental treatment. Case report: Patient L.H.D.L., male, 15 years old presenting high quantity of oral biofilm, mild fluorosis and generalized gingivitis. Clinically, it was possible to observe enamel fractures of teeth 12 and 14. Teeth 21, 22, 32 and 42 were clinically absent, which was confirmed radiographically. In addition, a 180-degree rotation of tooth 11 was noted, with the palate facing the buccal aspect. The tooth presented a slight change in color, but with a positive response to vitality tests. Results: Behavioral management techniques were adopted and guidelines on oral hygiene and diet were provided to both the patient and their caregiver. Four sessions of prophylaxis and topical application of fluoride were performed weekly. Endodontic treatment was performed on tooth 12, followed by aesthetic restoration of teeth 12 and 14 and esthetic restoration of tooth 11 (rotated). Finally, an adhesive prosthesis was performed to restore the esthetics of the upper central incisor region. Despite the difficulties of treating patients with LGS, in the present case it was possible to obtain satisfactory functional and aesthetic results with a careful diagnosis and treatment, involving a multidisciplinary team trained in the care of patients with special needs. Conclusion: It can be concluded that the dental surgeon must be aware with the possible oral manifestations of GLS and carry out a careful search for signs of dental trauma and, whenever possible, request a radiographic examination so that unidentified traumas on clinical examination do not pass unnoticed. Introdução: A Síndrome de Lennox-Gastaut (SLG) é uma encefalopatia epiléptica grave na infância. Seu tratamento é complexo, principalmente devido à multiplicidade das crises epilépticas, o que favorece à ocorrência de lesões dentais Objetivo: O objetivo deste relato é apresentar o manejo clínico de um paciente com SLG, vítima de traumas recorrentes, discutir os achados dentais observados e o tratamento odontológico realizado. Relato do caso: Paciente L.H.D.L., do sexo masculino, com 15 anos de idade, apresentando grande acúmulo de biofilme dental, alto risco de cárie, fluorose leve e gengivite generalizada. Clinicamente foi possível observar fratura de esmalte dos dentes 12 e 14. Os dentes 21, 22, 32 e 42 estavam ausentes clinicamente, o que se confirmou radiograficamente. Além disso, notou-se giroversão de 180 graus do dente 11, com a face palatina voltada para a vestibular. O dente apresentou-se com leve alteração de cor, mas com resposta positiva aos testes de vitalidade. Resultados: Técnicas de manejo de comportamental, foram adotadas e orientações quanto à higiene bucal e dietéticas foram fornecidas tanto ao paciente quanto ao seu cuidador. Quatro sessões de profilaxia e aplicação tópica de flúor foram realizadas semanalmente. O tratamento endodôntico foi realizado no dente 12, seguido da restauração de resina composta do dente 12 e 14 e a restauração estética do dente 11 (girovertido). Por fim, foi realizada uma prótese adesiva para restaurar a estética da região de incisivo central superior. Apesar das dificuldades para tratar pacientes com SLG, no presente caso foi possível obter resultados funcionais e estéticos satisfatórios com um diagnóstico e tratamento cuidadoso, envolvendo uma equipe multiprofissional treinada no atendimento de pacientes com necessidades especiais. Conclusão: Pode-se concluir que o cirurgião dentista deve estar familiarizado com as possíveis manifestações bucais da SLG e realizar uma pesquisa criteriosa de sinais de traumatismo dental e, sempre que possível, solicitar um exame radiográfico para que traumatismos não identificados ao exame clínico não passem desapercebidos.
- Published
- 2021
- Full Text
- View/download PDF
14. PREVALÊNCIA DE CASOS DE AGENESIA DE INCISIVOS LATERAIS SUPERIORES EM PACIENTES DA CLINICA DE ODONTOLOGIA DA FACULDADE INGÁ.
- Author
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SALOMÉ HERNANDES, TARSIS, DE OLIVEIRA, RENATA CRISTINA GOBBI, DA COSTA, JULYANO VIEIRA, and DE OLIVEIRA, RICARDO CÉSAR GOBBI
- Published
- 2015
15. Incidência das Posições Anatômicas e Agenesia dos Terceiros Molares em Estudantes de São Luís, Maranhão.
- Author
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Costa, Maria Aparecida, De Oliveira, Ana EmíLia Figueiredo, Costa, José Ferreira, Da Silva, Raimundo Antonio, Lopes, Fernanda Ferreira, and Da Silva, Ana Paula Bouéres
- Subjects
DENTAL radiography ,MOLARS ,TOOTH anatomy ,PUBLIC schools ,STUDENT health ,CROSS-sectional method ,CHI-squared test - Abstract
Copyright of Pesquisa Brasileira em Odontopediatria e Clinica Integrada is the property of Pesquisa Brasileira em Odontopediatria e Clinica Integrada Journal (Brazil) and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2010
- Full Text
- View/download PDF
16. Associação de agenesia sacrococígea e atresia anal em gato sem raça definida.
- Author
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de Araújo, Felipe Purcell, Araújo, Bruno Martins, Kemper, Bernardo, and Tudury, Eduardo Alberto
- Subjects
- *
SACROCOCCYGEAL region , *CAT diseases , *LUMBAR vertebrae , *VERTEBRAE , *TARSAL bones , *PELVIC abnormalities , *RADIOGRAPHY , *SPINA bifida , *COCCYX , *DISEASES - Abstract
This paper has the objective to report a case of a cat that since birth had anal atresia, absence of tail and malformation of the pelvic member. The radiographic examination revealed agenesis of the seventh lumbar vertebra, sacral and coccygeal vertebrae, spina bifida, meningocele, hyperflexion of the knees and tarsal valgus deviation, diagnosing sacrococcygeal agenesis associated with anal atresia. [ABSTRACT FROM AUTHOR]
- Published
- 2009
- Full Text
- View/download PDF
17. Malformação no membro torácico direito em Trachemys dorbigni
- Author
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Ricardo Lourenço-de-Moraes, Jussara Maria Leite Oliveira Leonardo, and Caio Henrique de Oliveira Carniatto
- Subjects
lcsh:Veterinary medicine ,Tortoise ,Agenesia ,tigre-d’água ,General Medicine ,Anatomy ,anomalia genética ,tartaruga ,Biology ,GENETIC ABNORMALITY ,medicine.disease ,Agenesis ,medicine ,lcsh:SF600-1100 - Abstract
Malformação em tartarugas, embora não raras, são pouco documentadas. No seguinte trabalho é apresentado um caso de malformação em um tigre d’água Trachemys dorbigni. Foi avaliado um espécime macho juvenil, de vida livre. O exame radiográfico constatou a ausência do membro torácico direito. Problemas de malformações podem ocorrer devido a alterações químicas no ambiente. É possível que a espécie esteja sofrendo mutações devido a forte pressão antrópica, o qual vem alterando o seu ambiente natural.
- Published
- 2017
18. Agenesia dos incisivos laterais superiores em ortodontia
- Author
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Aguiar, Eva Beatriz Alvim and Reis, Nelso
- Subjects
Treatment ,Ciências Médicas::Medicina Clínica [Domínio/Área Científica] ,Agenesis ,Orthodontic ,Upper lateral incisors - Abstract
Submitted by halves@ufp.pt (halves@ufp.pt) on 2019-02-04T15:48:03Z No. of bitstreams: 1 PPG_29724.pdf: 765583 bytes, checksum: d006a667aca4994202bddeedbb3f965c (MD5) Approved for entry into archive by halves@ufp.pt (halves@ufp.pt) on 2019-02-04T15:49:07Z (GMT) No. of bitstreams: 1 PPG_29724.pdf: 765583 bytes, checksum: d006a667aca4994202bddeedbb3f965c (MD5) Made available in DSpace on 2019-02-04T15:49:07Z (GMT). No. of bitstreams: 1 PPG_29724.pdf: 765583 bytes, checksum: d006a667aca4994202bddeedbb3f965c (MD5) Previous issue date: 2018-07-31
- Published
- 2018
19. Atlantoaxial instability secondary to agenesis of the odontoid process of the axis without rupture of the dorsal atlantoaxial ligament in dog
- Author
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João Antonio Tadeu Pigatto, Fábio dos Santos Teixeira, Rodolfo Voll, Juliana Voll, and Leandro Haczkiewwicz Gaiga
- Subjects
Odontoid process ,Dorsum ,medicine.medical_specialty ,business.industry ,General Medicine ,Anatomy ,Clínica e Cirurgia Animal ,medicine.disease ,Surgery ,medicine.anatomical_structure ,Atlantoaxial instability ,Agenesis ,Instabilidade Atlantoaxial ,Agenesia do processo odontóide ,Estabilização ventral ,Pinos transarticulares ,medicine ,Ligament ,Neurological dysfunction ,business - Abstract
Atlantoaxial instability is a congenital or traumatic or condition that causes cervical pain and varying degrees of neurological dysfunction. A case of atlantoaxial instability secondary to agenesis of the odontoid process of the axis without evidence of rupture of the dorsal atlantoaxial ligament in a dog treated sucessfully is presented. A nine-month-old male Lhasa Apso weighing 8.5 kg was referred to the Hospital de Clínicas Veterinárias (Veterinary Medical Teaching Hospital), Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre/Brazil. The neurological examination revealed hyperesthesia to palpation of the cranial cervical region, tetraparesis not ambulatory with increased reflexes and proprioceptive deficiency in the thoracic and pelvic limbs. Radiographs of the cervical spine showed agenesis of the odontoid process of the axis without evidence of atlantoaxial instability. The diagnosis of atlantoaxial instability was based on the clinical signs and radiographic examination in the ventrodorsal view. Surgical stabilization was achieved with two Steinmann pins using ventral approach. One week after the surgery, neurological examination evidenced ambulatory tetraparesis and radiograph showed alignment of subluxation and the Steinman pins correctly positioned. In the present case, the clinical improvement was attributed to the joint stabilization and fibrous tissue formation around of the atlantoaxial joint.
- Published
- 2018
20. HEMIMELIA RADIAL EM UM EXEMPLAR DA ESPÉCIE FELINA.
- Author
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Veras de Paula, Valéria and Dantas Filgueira, Kilder
- Subjects
- *
VETERINARY radiography , *FORELIMB abnormalities - Abstract
Hemimelia is uncommon in the feline species, and it is equivalent to hypoplasia or agenesis of paired bones. The study aimed to report a case of radius agenesis in a cat. A cat had changes in the forelimbs. The patient underwent physical examination, followed by radiographic evaluation. The forelimbs had rotational deformity, medially bent. Radiographs showed bilateral absence of the radius. The description of total radius hemimelia (agenesis) is essential to alert to its occurrence in feline clinical medicine. [ABSTRACT FROM AUTHOR]
- Published
- 2012
21. Forma atípica da síndrome de Mayer-Rokitansky-Kuster-Hauser com malformação renal e displasia cervicotorácica (associação de MURCS)
- Author
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Mariana de Almeida Pinto Borges, Suely Rodrigues dos Santos, Denise Leite Maia Monteiro, and Maria Lucia Elias Pires
- Subjects
Amenorréia ,Pediatrics ,medicine.medical_specialty ,Mullerian Ducts ,Genetic counseling ,Kidney ,MURCS association ,Anormalidades múltiplas/genética ,medicine ,Mayer-Rokitansky-Kuster-Hauser Syndrome ,Chromosome aberrations ,Amenorrhea ,Anormalidades múltiplas ,Relatos de casos ,Case reports ,business.industry ,Uterus ,Obstetrics and Gynecology ,Rim/anormalidades ,Rim ,Aplasia ,medicine.disease ,Hypoplasia ,Surgery ,Ductos de Muller ,multiple ,Ductos de Muller/anormalidades ,Dysplasia ,Útero/anormalidades ,Vagina/anormalidades ,Agenesis ,Vagina ,Útero ,Abnormalities ,business ,Aberrações cromossômicas ,Mullerian ducts - Abstract
A forma atípica e mais severa da síndrome Mayer-Rokitansky-Kuster-Hauser (MRKH) ou MRKH tipo II é também conhecida como associação de MURCS, cujo mnemônico significa aplasia/hipoplasia mülleriana (MU), malformação renal (R) e displasia cervicotorácica (CS). Acomete pacientes do sexo feminino com cariótipo e função ovariana normais, acarretando amenorreia primária. Apresenta incidência de 1:50.000, subestimada pelo diagnóstico tardio e etiologia mal definida. Descrevemos um caso em criança e outro em adolescente, com o objetivo de predizer o diagnóstico ainda na infância, antes da instalação do quadro de amenorreia; as pacientes apresentavam em comum malformação renal, agenesia ou hipoplasia de derivados müllerianos e anomalias vertebrais, configurando o diagnóstico de MURCS. A relevância do estudo é mostrar a necessidade de prosseguir a investigação na presença de algum dos sinais da doença, pesquisando anormalidades correlatas, a fim de se estabelecer o diagnóstico precocemente e, consequentemente, orientar pacientes e seus familiares quanto à melhor forma de condução do caso, incluindo aconselhamento genético. The atypical and more severe form of Mayer-Rokitansky-Kuster-Hauser syndrome (MRKH) or MRKH type II is also known as MURCS association, an acronym meaning aplasia/hypoplasia of Müllerian ducts (MU), congenital renal dysplasia (R) and cervico-thoracic dysplasia (CS). It affects female patients with normal karyotype and ovarian function, evolving to primary amenorrhea. It has an incidence of 1:50,000, but it is underestimated due to late diagnosis and undefined etiology. We describe the cases of a child and an adolescent in order to predict the diagnosis even in childhood, before the onset of amenorrhea. Patients had in common renal malformation, agenesis or hypoplasia of Müllerian derivatives and vertebral anomalies, establishing the diagnosis of MURCS. The relevance of this paper is to show the importance of further investigation when some of pathologic signs are present, researching correlated abnormalities in order to establish an early diagnosis and consequently to provide guidance to the patients and their families about the best way to conduct the case, including genetic counseling.
- Published
- 2012
22. Pneumotórax recidivante secundário à agenesia do diafragma Recurrent pneumothorax secondary to agenesis of the diaphragm
- Author
-
CAMILA BARACAT MENDINA, PAULO MANUEL PÊGO-FERNANDES, and FÁBIO BISCEGLI JATENE
- Subjects
lcsh:RC705-779 ,lcsh:Internal medicine ,Diafragma ,DOAJ:Medicine (General) ,lcsh:Specialties of internal medicine ,Diaphragm ,Agenesis ,lcsh:R ,Agenesia ,Pneumothorax ,lcsh:Medicine ,lcsh:Diseases of the respiratory system ,DOAJ:Internal medicine ,Recurrence ,lcsh:RC581-951 ,Pneumotórax ,DOAJ:Health Sciences ,lcsh:RC31-1245 ,Recidiva - Abstract
Os autores relatam um caso de pneumotórax recidivante secundário à agenesia do diafragma em mulher de 36 anos de idade. O diagnóstico foi realizado pela história clínica e radiografia de tórax. Optada pela correção cirúrgica, foi diagnosticada a agenesia de diafragma e realizada pleurodese. No segundo mês de pós-operatório, perante um novo episódio de pneumotórax, optou-se por laqueadura das trompas para impedir a entrada de ar no abdome no período ovulatório e, conseqüentemente, evitar novos episódios de pneumotórax.The authors report a case of recurrent pneumothorax secondary to agenesis of the diaphragm in a 36-year old female. The diagnosis was established by means of clinical history and chest X-ray examination. Surgical correction was carried out. Diaphragmatic agenesis was detected during the procedure and pleural abrasion was performed. Two months following surgery another pneumothorax episode occurred. Fallopian tube ligature was then performed in order to prevent the entrance of air into the abdomen during ovulation, and thus avoid further recurrences of pneumothorax.
- Published
- 2002
23. Caso estomatológico: agenesia dentária
- Author
-
Amorim, J.
- Subjects
environmental factors ,Agenesis ,prosthodontics ,upper lateral incisive ,orthodontic treatment ,genetic mutations - Abstract
Submitted by Revista Nascer e Crescer (nascerecrescer.hmp@chporto.min-saude.pt) on 2012-08-28T12:06:01Z No. of bitstreams: 1 09b_CasoEstomatologico_20-4.indd.pdf: 35491 bytes, checksum: 7919ba1259da1df8d7ec7ac67bf10b29 (MD5) Made available in DSpace on 2012-08-28T12:06:01Z (GMT). No. of bitstreams: 1 09b_CasoEstomatologico_20-4.indd.pdf: 35491 bytes, checksum: 7919ba1259da1df8d7ec7ac67bf10b29 (MD5) Previous issue date: 2011-12
- Published
- 2011
24. Oral pathology case: dental agenesis
- Author
-
Amorim, J.
- Subjects
stomatognathic diseases ,stomatognathic system ,environmental factors ,Agenesis ,prosthodontics ,upper lateral incisive ,orthodontic treatment ,genetic mutations - Abstract
We present the case of a 16 year-old boy with agenesis of upper lateral incisive teeth and increased interincisors spaces. The etiology of dental agenesis is unknown and the more consensual explanation is an association between genetic mutations and environmental factors. Orthodontic treatment was performed, followed by prosthodontics.
- Published
- 2011
25. Agenesia Dentária: o estado da arte
- Author
-
Oliveira, Vítor Miguel da Silva and Silveira, Augusta
- Subjects
Anomalias dentárias ,Agenesis ,Agenesia ,Maloclusão ,Dental anomalies ,Dentes supranumerários ,Supernumerary teeth ,Malocclusion - Abstract
Trabalho apresentado à Universidade Fernando Pessoa como parte dos requisitos para obtenção do grau de Mestre em Medicina Dentária. Submitted by biblioteca@ufp.pt (biblioteca@ufp.pt) on 2012-02-03T17:45:44Z No. of bitstreams: 1 TM_16441.pdf: 566868 bytes, checksum: 6897938052254dd860d4cfc71e034a70 (MD5) Made available in DSpace on 2012-02-03T18:07:00Z (GMT). No. of bitstreams: 1 TM_16441.pdf: 566868 bytes, checksum: 6897938052254dd860d4cfc71e034a70 (MD5) Previous issue date: 2011
- Published
- 2011
26. Caso estomatológico
- Author
-
Amorim, José M. S.
- Subjects
stomatognathic diseases ,stomatognathic system ,environmental factors ,prosthodontics ,upper lateral incisive ,orthodontic treatment ,genetic mutations ,agenesis - Abstract
We present the case of a 16 year-old boy with agenesis of upper lateral incisive teeth and increased interincisors spaces. The etiology of dental agenesis is unknown and the more consensual explanation is an association between genetic mutations and environmental factors. Orthodontic treatment was performed, followed by prosthodontics.
- Published
- 2011
27. Caso estomatológico
- Author
-
Amorim,José M. S.
- Subjects
environmental factors ,prosthodontics ,upper lateral incisive ,orthodontic treatment ,genetic mutations ,agenesis - Published
- 2011
28. Agenesia Dentária
- Author
-
Oliveira, Vítor Miguel da Silva and Silveira, Augusta
- Subjects
Anomalias dentárias ,Agenesis ,Agenesia ,Maloclusão ,Dental anomalies ,Dentes supranumerários ,Supernumerary teeth ,Malocclusion - Abstract
Trabalho apresentado à Universidade Fernando Pessoa como parte dos requisitos para obtenção do grau de Mestre em Medicina Dentária. A agenesia dentária constitui uma das anomalias de número mais frequentes na cavidade oral, e traduz-se na ausência de uma ou mais peças dentárias, na dentição decídua ou definitiva, devido ao facto de não ter ocorrido a formação do gérmen dentário. A sua expressão pode variar desde a ausência de uma única peça dentária, sendo mais frequente o terceiro molar, até à totalidade dos dentes. O presente trabalho versou objectivos no contexto de uma revisão bibliográfica, no sentido de entender a etiologia desta anomalia, epidemiologia, relação com outras anomalias dentárias, diagnóstico, consequências para o paciente e médico dentista, bem como, as opções de tratamento indicadas, por diferentes autores, de acordo com o número de peças dentárias ausentes e outras questões relacionadas com características do paciente. Esta alteração apresenta-se cada vez mais frequentemente na dentição humana, e apesar de se tratar de uma problemática bem documentada cientificamente, verifica-se ainda alguma falta de consenso na comunidade científica com respeito à localização, género, número ou tipo. Por outro lado, verifica-se que existe concordância com relação aos dentes mais afectados (terceiro molar, incisivo lateral superior e segundo pré-molar inferior, de acordo com a maior frequência respectivamente). Deste modo, esta revelou-se uma temática interessante e pertinente, no sentido de caracterizar a patologia em vertentes diversas e enfatizar a importância de um diagnóstico e intervenção precoces, a fim de evitar ou atenuar alterações oclusais, morfológicas e/ou estéticas provocadas pela mesma. Dental agenesis is one of the dental anomalies of number and it is characterised by the lack of one or more dental parts in the permanent dentition. This absence of dental parts is caused by non development of dental germ. Dental agenesis may imply absence of one single dental part, mostly the third molar, or even the total absence of teeth. This assignment approaches dental agenesis subject through the analysis of related bibliography. Several aspects of dental agenesis were studied, such as its aetiology, epidemiology, relation with other dental anomalies, diagnosis, consequences and some treatment possibilities. This anomaly reveals a growing incidence in human dentition. Among the scientific community there is controversy what concerns patterns standardization of localization, gender, number or teeth type. However, there is agreement on the most affected teeth (third molar, upper lateral incisor, second lower premolar). Therefore we appeal Dentist Doctors to undertake a more effective action in early prevention and diagnosis, avoiding or preventing morphological and/or aesthetics occlusal changes.
- Published
- 2011
29. A influência da perda bilateral do primeiro molar inferior permanente na morfologia dentofacial: um estudo cefalométrico
- Author
-
Cristina Cavacami and David Normando
- Subjects
Molar ,Lower anterior ,Cefalometria ,business.industry ,Cephalometry ,Dentistry ,Orthodontics ,medicine.disease ,Lower incisor ,Chin ,Primeiro molar permanente ,Age and gender ,medicine.anatomical_structure ,Agenesis ,Occlusal plane ,Medicine ,In patient ,Oral Surgery ,First permanent molar ,business - Abstract
OBJETIVO: avaliar as alterações cefalométricas em pacientes com perda bilateral do primeiro molar inferior permanente. MÉTODOS: foram analisadas 68 telerradiografias laterais de pacientes de consultórios particulares. A amostra foi dividida em dois grupos pareados quanto ao sexo e idade - 34 indivíduos sem perdas (grupo controle) e 34 com perda bilateral do primeiro molar inferior permanente (grupo com perda). Foram excluídos da amostra pacientes que haviam perdido outros dentes que não o primeiro molar inferior, casos de agenesia e pacientes com menos de 16 anos de idade. Buscou-se avaliar somente indivíduos que tivessem relatado a perda há pelo menos 5 anos. RESULTADOS: demonstraram que a perda bilateral do primeiro molar inferior permanente leva ao suave fechamento do ângulo GnSN (P=0,05), um giro anti-horário do plano oclusal (P=0,0001), uma suave diminuição da altura facial anteroinferior (P=0,05), uma acentuada inclinação lingual (P=0,04) e retrusão dos incisivos inferiores (P=0,03). Por outro lado, a perda bilateral do primeiro molar inferior permanente não foi capaz de influenciar a relação maxilomandibular no sentido anteroposterior (P=0,21), a quantidade de mento (P=0,45), a inclinação dos incisivos superiores (P=0,12) e a posição anteroposterior dos incisivos superiores (P=0,46). CONCLUSÃO: a perda bilateral dos primeiros molares inferiores é capaz de produzir alterações marcantes no posicionamento dos incisivos inferiores e no plano oclusal, além de uma suave redução vertical da face OBJECTIVE: To evaluate cephalometric changes in patients after bilateral loss of lower first permanent molar teeth. METHODS: Sixty-eight lateral radiographs of patients from private practices were analyzed. The sample was divided into two groups matched for age and gender: 34 individuals without loss (control group) and 34 presenting with bilateral loss of lower first permanent molar teeth (loss group). Patients who had lost teeth other than first molars, cases of agenesis and patients under 16 years of age were excluded from the sample. Only individuals who reported losing teeth at least 5 years earlier were evaluated. RESULTS: It was found that bilateral loss of lower first permanent molars leads to smooth closure of GnSN angle (P=0.05), counterclockwise rotation of occlusal plane (P=0.0001), mild decrease in lower anterior face height (P=0.05), pronounced lingual tipping (P=0.04) and retrusion of mandibular incisors (P=0.03). Moreover, bilateral loss of lower first permanent molars did not affect the maxillomandibular relationship in the anteroposterior direction (P=0.21), amount of treatment (P=0.45), inclination of upper incisors (P=0.12) and anteroposterior position of maxillary incisors (P=0.46). CONCLUSION: Bilateral loss of lower first molars can produce marked changes in lower incisor positioning and in the occlusal plane as well as a mild reduction of the face in the vertical direction
- Published
- 2010
30. Agenesia do ligamento cruzado anterior – estudo de caso
- Author
-
Moreira, Andreia and Torres, Rui
- Subjects
Agenesis ,Electromiografia de superfície ,Isokinetic dynamometer ,Agenesia ,Dinamómetro isocinético ,Quadriceps ,lsquiotibiais ,Gastrocnémios ,Gastrocnemius ,Ligamento cruzado anterior ,Quadricípite ,Surface electromyography ,Anterior cruciate ligament ,Hamstrings - Abstract
Submitted by Manuel Brandão (mbrandao@estsp.ipp.pt) on 2014-04-29T11:20:39Z No. of bitstreams: 1 DM_AndreiaMoreira_2010.pdf: 36363650 bytes, checksum: efc9dc959b2da368ea8dcd1513d50a29 (MD5) Made available in DSpace on 2014-04-29T11:20:39Z (GMT). No. of bitstreams: 1 DM_AndreiaMoreira_2010.pdf: 36363650 bytes, checksum: efc9dc959b2da368ea8dcd1513d50a29 (MD5) Previous issue date: 2010
- Published
- 2010
31. Sacrococcygeal agenesis association and anal atresia in mixed breed cats
- Author
-
Araújo, Felipe Purcell de, Araújo, Bruno Martins, Kemper, Bernardo, and Tudury, Eduardo Alberto
- Subjects
musculoskeletal diseases ,congenital, hereditary, and neonatal diseases and abnormalities ,gatos ,anal atresia ,região sacrococcígea ,Agenesis ,cats ,Agenesia ,sacrococcygeal region ,musculoskeletal system ,atresia anal - Abstract
O presente trabalho teve como objetivo descrever o caso de um felino, que desde o nascimento apresentou atresia anal, ausência de cauda e malformação dos membros pélvicos. Ao exame radiográfico, pôde-se observar presença de agenesia da sétima vértebra lombar, sacro e vértebras coccígeas, espinha bífida, meningocele, hiperflexão dos joelhos e desvio valgo dos tarsos, diagnosticando-se agenesia sacrococcígea associada à atresia anal. This paper has the objective to report a case of a cat that since birth had anal atresia, absence of tail and malformation of the pelvic member. The radiographic examination revealed agenesis of the seventh lumbar vertebra, sacral and coccygeal vertebrae, spina bifida, meningocele, hyperflexion of the knees and tarsal valgus deviation, diagnosing sacrococcygeal agenesis associated with anal atresia.
- Published
- 2009
32. Agenesis of the internal carotid artery: a case report
- Author
-
Rafaelo Sanches, Raphael Gouveia Garzon, Américo Poça d'Água, Milton Yochiharu Kakudate, William da Silva Neves, and Crescêncio Pereira Cêntola
- Subjects
Agenesis ,Agenesia ,Radiology, Nuclear Medicine and imaging ,Internal carotid artery ,Síncope ,Syncope ,Artéria carótida interna - Abstract
Relata-se, aqui, caso de uma adolescente de 14 anos de idade que apresentou episódio isolado de síncope, sem outros sintomas. No exame de ressonância magnética observou-se, nos cortes nos planos axial e coronal ponderados em T2, ausência do flow void da artéria carótida interna direita na sua porção intracavernosa. Realizou-se, então, angiorressonância magnética técnica time-of-flight, que mostrou ausência da artéria carótida interna direita, o que foi comprovado com a angiorressonância magnética de vasos cervicais e com angiotomografia computadorizada, que mostrou, nos cortes axiais, agenesia do canal carotídeo direito. Tal achado é relatado na literatura, em associação com outras anomalias, como encefaloceles transesfenoidais e aneurismas do polígono de Willis. No presente caso, não foram observadas tais associações. A paciente permaneceu assintomática. The present paper reports a case of a 14-year-old-female adolescent who presented a single episode of syncope, without any other symptom. Axial and coronal T2-weighted magnetic resonance imaging demonstrated an absent right internal carotid artery flow void. A subsequent magnetic resonance angiography utilizing the time-of-flight technique showed absence of the right internal carotid artery. This finding was confirmed by magnetic resonance angiography of the cervical vessels, and axial computed tomography angiography showed agenesis of the right carotid canal. The literature reports such finding in association with other anomalies such as transsphenoidal encephaloceles and circle of Willis aneurysms. These associations were not observed in the present case. The patient remained asymptomatic.
- Published
- 2008
33. Inferior vena cava malformation and deep venous thrombosis : a risk factor of venous thrombosis in the young
- Author
-
Leandro Armani Scaffaro, Renan Onzi, Luiz Francisco Machado da Costa, Regis Fernando Angnes, Paulo Moraes, Carolina Stapenhorst, and Luciano Amaral Domingues
- Subjects
medicine.medical_specialty ,business.industry ,Left renal vein ,Anatomy ,medicine.disease ,Inferior vena cava ,Thrombosis ,Surgery ,Veia cava inferior ,Venous thrombosis ,medicine.vein ,Popliteal vein ,Agenesis ,medicine ,Deep venous thrombosis ,Cardiology and Cardiovascular Medicine ,business ,Trombose venosa - Abstract
A ausência da veia cava inferior, alteração no processo de formação embriológica que ocorre entre a sexta e a oitava semanas de gestação, é uma rara anomalia congênita. Porém, recentemente foi confirmada como sendo um fator de risco importante para o desenvolvimento de trombose venosa profunda, especialmente em jovens. Apresentamos um caso de trombose em veias cava inferior, ilíacas, femorais e poplíteas numjovem de 16 anos com agenesia deum segmento de veia cava infra-renal e veia renal esquerda retroaórtica. Absence of inferior vena cava, caused by aberrant development within the sixth to eighth weeks of gestation, is a rare congenital anomaly.However, it has been recently confirmedas a major risk factor for the development of deep venous thrombosis, especially in young patients. We report a case of inferior vena cava, iliac, femoral and popliteal vein thrombosis in a 16-year-old patient with inferior vena cava agenesis and retroaortic left renal vein.
- Published
- 2007
34. Anomalias e variações na fórmula dentária em morcegos do gênero Artibeus Leach (Chiroptera, Phyllostomidae)
- Author
-
Ana Maria Rui and César Jaeger Drehmer
- Subjects
Molar ,biology ,Dentition ,Agenesis ,Zoology ,Artibeus lituratus ,polimorfismo ,biology.organism_classification ,polymorphism ,Artibeus fimbriatus ,atavismo ,medicine.anatomical_structure ,stomatognathic system ,Incisor ,Premolar ,medicine ,Animal Science and Zoology ,Agênese ,atavism ,Artibeus - Abstract
Descreve-se a ocorrência e analisa-se as causas de anomalias dentárias em Artibeus lituratus (Olfers, 1818) e A. fimbriatus Gray, 1838 (Chiroptera: Phyllostomidae) provenientes de populações do Estado do Rio Grande do Sul, sul do Brasil. São discutidas, com base no material examinado e em ampla revisão da literatura, as variações quanto à presença dos terceiros molares superior e inferior entre diferentes espécies de Artibeus Leach, 1821. Foram analisados 104 crânios de A. lituratus e 44 de A. fimbriatus quanto à fórmula dentária. Em A. lituratus ocorreram dois casos de dentes extranumerários, um incisivo superior e um terceiro molar superior direito, e um de agênese dentária dos terceiros molares inferiores. Em A. fimbriatus constatou-se a ocorrência de um segundo pré-molar superior direito extranumerário. As ocorrências do terceiro molar superior em A. lituratus e do segundo pré-molar superior em A. fimbriatus são casos de atavismos. Em Artibeus (Artibeus) ocorrem variações quanto à presença do terceiro molar superior, de maior ou menor intensidade, em praticamente todas as espécies. Estas variações ocorrem tanto a nível intrapopulacional quanto geográfico. Já o terceiro molar inferior está ausente em baixa freqüência em várias populações de diferentes espécies. Os terceiros molares superiores e inferiores estão em processo de desaparecimento na linhagem dos Artibeus (Artibeus). O fato destes dentes já não ocorrerem em algumas espécies, terem ocorrência variável em outras e serem sempre estruturas reduzidas e simplificadas, sem função na mastigação, são indicativos deste processo evolutivo. A variação intensa observada quanto à ocorrência do terceiro molar superior inviabiliza o seu uso como caráter útil na identificação de espécies. This paper describes and analyzes the causes of dental formula anomalies in the bats Artibeus lituratus (Olfers, 1818) and Artibeus fimbriatus Gray, 1838 (Phyllostomidae) belonging to populations inhabiting the southernmost Brazilian state of Rio Grande do Sul. Based on material examined and descriptions reported in the literature, is presented a general discussion on variation in the presence or absence of the third superior and inferior molars within members of the genus Artibeus (Leach, 1821). Of the 104 A. lituratus skulls examined was found one with an extra upper incisor and one with an extra upper right third molar, along with one case of lower third molar agenesis. In the 44 A. fimbriatus skulls examined was found one with an extra upper right second premolar, a tooth which is usually absent in this species. The occurrence of the extra molar in A. lituratus and the second premolar in A. fimbriatus are atavistic, probably reflecting the ancestral A. lituratus in the case of the extra molar and, for the premolar, an even more ancient ancestor which lived before the divergence of the Phyllostomidae family. Regarding the genus as a whole, there is variation in the presence or absence of the third superior molar in practically all Artibeus species, such variation occurring at both the intrapopulational level and geographically. There is also already a low frequency of absent third inferior molars in various Artibeus species. Both superior and inferior third molars are in the process of exclusion from the dentition of Artibeus and do not occur in some species, and, when present, are always reduced in size and extremely simplified in their cuspidal pattern and do not participate in food processing: indicating a clear evolutionary trend to the loss of these teeth. Such variation is important because variability in the presence and absence of third molars means that these teeth are not appropriate characteristic for the identification of Artibeus species.
- Published
- 2004
35. Disgenesia do corpo caloso e más-formações associadas: achados de tomografia computadorizada e ressonância magnética
- Author
-
Marcelo Eustáquio Montandon Júnior, Flávia Aparecida de Sousa Ribeiro, Kim-Ir-Sen Santos Teixeira, Leonardo Valadares Barbosa Lôbo, and Cristiano Montandon
- Subjects
congenital, hereditary, and neonatal diseases and abnormalities ,Dysgenesis of the corpus callosum ,Brain malformation ,medicine.diagnostic_test ,business.industry ,Magnetic resonance imaging ,Lipoma do corpo caloso ,Anatomy ,Lipoma ,medicine.disease ,Corpus callosum ,Lipoma of the corpus callosum ,Hypoplasia ,Dysgenesis ,Schizencephaly ,Anomalias do desenvolvimento ,Agenesis ,Disgenesia do corpo caloso ,medicine ,Radiology, Nuclear Medicine and imaging ,Cyst ,Má-formação cerebral ,business ,Developmental anomalies - Abstract
O termo disgenesia do corpo caloso refere-se a uma má-formação deste com origem na embriogênese do telencéfalo. O relato analisa os achados de tomografia computadorizada e ressonância magnética em 11 pacientes com disgenesia calosa e em um caso de corpo caloso normal com lipoma associado. Esta pode ser distinguida em três grupos: agenesia total (três casos), agenesia parcial (seis casos) e hipoplasia (dois casos). Anomalias associadas foram observadas em nove casos, incluindo má-formação de Chiari tipo II (um caso), esquizencefalia (um caso), cisto inter-hemisférico (dois casos), heterotopia nodular (um caso), cisto de Dandy-Walker (um caso) e lipoma do corpo caloso (quatro casos). Este artigo demonstra um espectro destes distúrbios, auxiliando na sua interpretação diagnóstica. Callosal dysgenesis is a malformation of the corpus callosum with origins in the embryogenesis of the telencephalon. We reviewed the computed tomography and magnetic resonance imaging findings of 11 patients with callosal dysgenesis and one patient with normal corpus callosum associated with a lipoma. The patients were divided into three distinct groups: total agenesis (three patients), partial agenesis (six patients) and hypoplasia (two patients). Associated abnormalities were observed in nine patients, including Chiari II malformation (one patient), schizencephaly (one patient), interhemispheric cyst (two patients), Dandy-Walker cyst (one patient), nodular heterotopy (one patient) and lipoma of the corpus callosum (four patients). This paper presents a review that may contribute to the diagnosis of these disorders.
- Published
- 2003
36. Recurrent pneumothorax secondary to agenesis of the diaphragm
- Author
-
MENDINA,CAMILA BARACAT, PÊGO-FERNANDES,PAULO MANUEL, and JATENE,FÁBIO BISCEGLI
- Subjects
Diafragma ,Recurrence ,Diaphragm ,Agenesis ,Agenesia ,Pneumothorax ,Pneumotórax ,Recidiva - Abstract
Os autores relatam um caso de pneumotórax recidivante secundário à agenesia do diafragma em mulher de 36 anos de idade. O diagnóstico foi realizado pela história clínica e radiografia de tórax. Optada pela correção cirúrgica, foi diagnosticada a agenesia de diafragma e realizada pleurodese. No segundo mês de pós-operatório, perante um novo episódio de pneumotórax, optou-se por laqueadura das trompas para impedir a entrada de ar no abdome no período ovulatório e, conseqüentemente, evitar novos episódios de pneumotórax. The authors report a case of recurrent pneumothorax secondary to agenesis of the diaphragm in a 36-year old female. The diagnosis was established by means of clinical history and chest X-ray examination. Surgical correction was carried out. Diaphragmatic agenesis was detected during the procedure and pleural abrasion was performed. Two months following surgery another pneumothorax episode occurred. Fallopian tube ligature was then performed in order to prevent the entrance of air into the abdomen during ovulation, and thus avoid further recurrences of pneumothorax.
- Published
- 2002
37. Agenesis and cavum of septum pellucidum: report of five cases
- Author
-
Nélio Garcia de Barros, Carlos Alberto Vieira, Mllberto Scaff, Luís Marques-Assis, and Gilberto Machado de Almeida
- Subjects
Pathology ,medicine.medical_specialty ,business.industry ,medicine.medical_treatment ,Anatomy ,medicine.disease ,lcsh:RC321-571 ,Neurology ,Agenesis ,Medicine ,Pneumoencephalography ,Neurology (clinical) ,business ,lcsh:Neurosciences. Biological psychiatry. Neuropsychiatry ,Septum pellucidum - Abstract
São apresentados 4 casos de agenesia e um de cavo do septo pelúcido. São feitos comentários sobre a incidência, sintomatologia e associações com outras anomalias, chamando a atenção para a inexistência de um quadro clínico próprio ou de um sintoma peculiar nestas duas entidades. Four cases of agenesis and one of cavum of septum pellucidum are reported. Comments on the incidence, symptomatology and association with other anomalies, emphasizing the absence of a definite clinical picture or symptom are made.
- Published
- 1971
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