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Lipoma is a benign mesenchymal neoplasm of adipocytes, with great frequency in subcutaneous or dermal forms and with greater occurrence linked to the canine species. Characterized by presenting a single, rounded, well-circumscribed mass of slow growth, when described intrathoracic and intra-abdominal, there are clinical signs associated with the compression of organs in the cavities; the most appropriate treatment is surgical excision, without the need for postoperative chemotherapy. And despite having low morbidity, animal welfare may be compromised due to high growth and occurrences of ulcers, with pictures of associated pain and discomfort. During treatment at the Veterinary University Hospital of the State University of Londrina, an 11-year-old female beagle dog was treated, presenting a mass in the abdominal region with progressive abdominal volume increase for two years. On physical examination, the animal was panting, but with the other parameters within normal limits. Radiographic examination revealed the presence of a structure that displaced the intra-abdominal organs cranially, appeared to be adipose tissue and had some more radiopaque areas. Laboratory, biochemical and blood tests performed preoperatively were within normal reference values. The confirmation of the diagnosis was based on physical, laboratory and radiographic examinations, and after the results, an exploratory celiotomy was performed for subsequent excisional biopsy and histopathological evaluation. Surgical treatment was performed with removal of the affected area. Post-surgical treatment with Cephalexin, Tramadol Hydrochloride, Meloxicam and Ranitidine Hydrochloride was instituted. The use of the Elizabethan collar was also advised full time and the cleaning of the surgical wound with physiological solution and Merthiolate. The treatment was effective and the animal had excellent recovery, with no signs of recurrence. Lipoma é uma neoplasia mesenquimal benigna de adipócitos, com grande frequência nas formas subcutânea ou dérmica e de maior ocorrência ligada à espécie canina. Caracteriza por apresentar massa única, arredondada, bem circunscrita de crescimento lento, quando descritos intratorácico e intra-abdominal, há sinais clínicos associados com a compressão de órgãos das cavidades; o tratamento é a mais indicado é a excisão cirúrgica, sem necessidade de quimioterápicos pós operatório. E apesar da possuir baixa morbidade, o bem-estar animal pode estar comprometido em virtude de grande crescimento e ocorrências de úlceras, com quadros de muita dor e desconforto associados. Durante atendimento no Hospital Veterinário Universitário da Universidade Estadual de Londrina, foi atendido um cão de 11 anos de idade, fêmea, da raça beagle, apresentando uma massa na região abdominal com aumento de volume abdominal progressivo há dois anos. Ao exame físico, o animal se apresentava ofegante, mas com os demais parâmetros dentro da normalidade. Ao exame radiográfico era evidente a presença de uma estrutura que deslocava os órgãos intra-abdominais cranialmente, aparentava tecido adiposo e apresentava algumas áreas mais radiopacas. Os exames laboratoriais, bioquímicos e hemograma, realizados como pré-operatórios se encontravam dentro dos valores de referência normais. A confirmação do diagnóstico foi baseada nos exames físico, laboratoriais e radiográfico, e após os resultados, foi realizada uma celiotomia exploratória para posterior biópsia excisional e avaliação histopatológica. Procedeu-se o tratamento cirúrgico com extirpação da área afetada. Foi instituído o tratamento pós-cirúrgico com Cefalexina, Cloridrato de Tramadol, Meloxicam e Cloridrato de Ranitidina.. Foi orientado também o uso do colar elizabetano por tempo integral e a limpeza da ferida cirúrgica com solução fisiológica e Merthiolate. O tratamento foi eficaz animal teve excelente recuperação, sem sinais de reincidência.

Neoplasms of the digestive system are uncommon in dogs, and may be of epithelial, neuroendocrine, hematopoietic and mesenchymal origin. The leiomyosarcoma is a tumor of mesenchymal origin of smooth, malignant, slow-growing muscles. Paraneoplastic syndromes can affect different systems, being the most commonly found: hypercalcemia, hypoglycemia, cachexia and anemia. There are rare cases of mesenchymal tumors of the gastrointestinal tract in dogs that result in hypoglycaemia with clinical signs. The objective of this study is to report a case of gastric leiomyosarcoma associated with clinical hypoglycemia. The patient had neurological signs such as ataxia and seizures associated with hypoglycemia, which did not recur after surgical excision of the tumor. The definitive diagnosis was based on the histopathological and immunohistochemical examination of the tumor.

The aim of this study were to detect antibodies anti-Leishmania spp. and anti-Trypanosoma cruzi in two different populations of domestic cats (Felis catus domesticus) from North Paraná referred for surgical castration and to determine which characteristics of the animals studied may be associated with seropositivity. Serum samples from 679 cats were analyzed using enzyme-linked immunosorbent assay (ELISA) and indirect immunofluorescence antibody test (IFAT) in series. Associations between age, sex, race, year of care and animal group were verified using the simple logistic regression. Percentage of 8.5% (58/679) of cats were positive for Leishmania spp. and 7.6% (51/673) for T. cruzi by the tests ELISA and IFAT. Animals collected by non-governmental animal protection organizations presented more seropositivity for Leishmania spp. (p

Um cao, femea, raca Boxer, com nove anos de idade foi diagnosticado com osteossarcoma no membro posterior direito. Durante a investigacao de ocorrencia de metastase por meio de exames de imagem, observou-se presenca de uma massa na cavidade abdominal. Realizou-se laparatomia exploratoria e observou-se que a massa estava localizada no ovario esquerdo. O exame citologico intraoperatorio demonstrou presenca de celulas fusiformes com moderado pleomorfismo celular e neutrofilos. Tais achados citologicos nao foram sugestivos de metastase de osteossarcoma. A massa foi totalmente excisada e submetida a avaliacao histopatologica. No exame microscopico observou-se uma proliferacao de celulas fusiformes dispostas em arranjos trabeculares formando canais vasculares, entremeadas por discreto a moderado estroma colagenoso. As celulas mostraram moderado pleomorfismo celular e alto indice mitotico. Havia presenca de necrose acentuada e hemorragia multifocal. Com base nos achados histopatologicos, o diagnostico definitivo foi de hemangiosarcoma. Este tumor raramente acomete o ovario como sitio primario em caes e foi relatado apenas uma vez na literatura veterinaria. No entanto, deve ser considerado como diagnostico diferencial em caes femeas com massa em ovario.

Introduction Saint Louis encephalitis virus (SLEV) primarily occurs in the Americas and produces disease predominantly in humans. This study investigated the serological presence of SLEV in nonhuman primates and horses from southern Brazil. Methods From June 2004 to December 2005, sera from 133 monkeys (Alouatta caraya, n=43; Sapajus nigritus, n=64; Sapajus cay, n=26) trap-captured at the Paraná River basin region and 23 blood samples from farm horses were obtained and used for the serological detection of a panel of 19 arboviruses. All samples were analyzed in a hemagglutination inhibition (HI) assay; positive monkey samples were confirmed in a mouse neutralization test (MNT). Additionally, all blood samples were inoculated into C6/36 cell culture for viral isolation. Results Positive seroreactivity was only observed for SLEV. A prevalence of SLEV antibodies in sera was detected in Alouatta caraya (11.6%; 5/43), Sapajus nigritus (12.5%; 8/64), and S. cay (30.8%; 8/26) monkeys with the HI assay. Of the monkeys, 2.3% (1/42) of A. caraya, 6.3% 94/64) of S. nigritus, and 15.4% (4/26) of S. cay were positive for SLEV in the MNT. Additionally, SLEV antibodies were detected by HI in 39.1% (9/23) of the horses evaluated in this study. Arboviruses were not isolated from any blood sample. Conclusions These results confirmed the presence of SLEV in nonhuman primates and horses from southern Brazil. These findings most likely represent the first detection of this virus in nonhuman primates beyond the Amazon region. The detection of SLEV in animals within a geographical region distant from the Amazon basin suggests that there may be widespread and undiagnosed dissemination of this disease in Brazil.

We describe a congenital mature intracranial teratoma in a Pampas deer (Ozotoceros bezoarticus) in southern Brazil. We found an irregular, spongy, space-occupying mass in the brain. The tumor consisted of well-differentiated tissues that derived from all three germ layers.

Descreveram-se os valores hematológicos de bugios pretos (Alouatta caraya) e estabeleceram-se diferenças entre sexo e idade, de 36 animais aparentemente saudáveis, de vida livre da região do Alto Rio Paraná, sul do Brasil. Os animais foram capturados e contidos quimicamente com cloridrato de tiletamina e cloridrato de zolazepam, na dose média de 5,5mg/kg, por via intramuscular. Na comparação entre os sexos, houve diferença para número de hemácias (4,48±1,36 e 3,58±0,91 x10(6)/mm³), maior nas fêmeas, e volume globular médio (90,99±27,65 e 118,36±44,63fL) e número de eosinófilos (0,30±0,24 e 0,76±0,85 x10³/mm³), maior nos machos. O volume globular (39,46±3,53 e 36,69±3,54%) e a proteína total plasmática (7,91±0,53 e 7,40±0,63g/dL) foram significativamente mais baixos nos animais jovens.

We evaluated blood samples obtained from 80 free-ranging healthy capuchins (Cebus cay and C. nigritus) to establish hematological reference values and to assess the influence of sex and age on them. We caught the monkeys in the Parana River region of Southern Brazil via manual or automatic traps. We anesthetized them intramuscularly with 3.6 mg/kg tiletamine/zolazepam hydrochlorides. After physical examinations, we divided the sample according to sex and age: 26 females (13 adults and 13 juveniles) and 54 males (27 adults and 27 juveniles). We collected blood and determined hematological values via traditional published methods. We analyzed data via 2-way ANOVA to test the effect of sex, age, and interactions between the 2 factors. The packed-cell volume was higher in adult males and the numbers of white blood cells and lymphocytes were higher in juveniles. There is no other significant difference.

Universidade Federal da Integra??o Latino-Americana. Foz do Igua?u, PR, Brasil. Minist?rio da Sa?de. Secretaria de Vigil?ncia em Sa?de. Instituto Evandro Chagas. Ananindeua, PA, Brasil. Minist?rio da Sa?de. Secretaria de Vigil?ncia em Sa?de. Instituto Evandro Chagas. Ananindeua, PA, Brasil. Universidade Federal do Paran?. Curitiba, PR, Brasil. Universidade Federal do Paran?. Curitiba, PR, Brasil. Universidade Federal do Paran?. Curitiba, PR, Brasil. Secretaria de Estado de Sa?de do Mato Grosso do Sul. Campo Grande, MS, Brasil. Secretaria de Estado de Sa?de do Paran?. Curitiba, PR, Brasil. Universidade Estadual de Londrina. Departamento de Medicina Veterin?ria e Preventiva e Cl?nica de Pequenos Animais. Londrina, PR, Brasil. Universidade Estadual de Londrina. Departamento de Medicina Veterin?ria e Preventiva e Cl?nica de Pequenos Animais. Londrina, PR, Brasil. Universidade Federal da Integra??o Latino-Americana. Foz do Igua?u, PR, Brasil. Instituto Chico Mendes de Conserva??o da Biodiversidade. Centro Nacional de Pesquisa e Conserva??o de Primatas Brasileiros. Jo?o Pessoa, PB, Brasil. Universidade Federal do Paran?. Curitiba, PR, Brasil. Universidade Regional de Blumenau. Santa Catarina, SC, Brasil. Universidade Estadual de Londrina. Departamento de Medicina Veterin?ria e Preventiva e Cl?nica de Pequenos Animais. Londrina, PR, Brasil. Nonhuman primates are considered as the natural hosts of Hepatitis A virus (HAV), as well as other pathogens, and can serve as natural sentinels to investigate epizootics and endemic diseases that are of public health importance. During this study, blood samples were collected from 112 Neotropical primates (NTPs) (Sapajus nigritus and S. cay, n = 75; Alouatta caraya, n = 37) trap-captured at the Paran? River basin, Brazil, located between the States of Paran? and Mato Grosso do Sul. Anti-HAV IgG antibodies were detected in 4.5 per cent (5/112) of NTPs, specifically in 6.7 per cent (5/75) of Sapajus spp. and 0 per cent (0/37) of A. caraya. In addition, all samples were negative for the presence of IgM anti-HAV antibodies. These results suggest that free-ranging NTPs were exposed to HAV within the geographical regions evaluated.

Researchers consider predation rates by terrestrial animals to be lower in the case of arboreal primates, particularly among large-bodied species. We recorded the consumption of black-and-gold howlers (Alouatta caraya) by cougars (Puma concolor) as evidence of predation on an island of the upper Parana River. We collected and processed fecal samples of the felid in 2004 and 2005. We identified items in the laboratory by comparison with museum specimens. We considered each species in a fecal sample as a single occurrence. Based on analysis of the cuticle scale pattern, we identified the felid as cougar. Howlers occurred in 4 out of the 8 fecal samples (40% of the occurrences). In addition to howlers, we also recorded 5 occurrences of agouti (Dasyprocta azarae; 50%) and a small unidentified sigmodontine rodent (10%). The abundance of howlers and the low forest canopy in a successional vegetation might have facilitated the predation of the large primates by a primarily terrestrial predator. The versatility of cougars is corroborated by the consumption of prey species that were abundant in the region and that were available in different forest strata, such as howlers and agoutis.

The difficulty of capturing capuchins(genus Cebus)via anesthetic projectiles, as well as the scarcity of methodological descriptions of operational trapping programs, are widely known. The limitations hamper studies focusing on the conservation and evaluation of the health of capuchins that depend on their capture. We report on techniques and trap models used for capturing black tufted capuchins(Cebus nigritus)in Londrina, Telemaco Borba, and Porto Rico, municipalities of the State of Parana, Southern Brazil. Captures occurred in forest fragments, continuous forests, and gallery forests belonging to several vegetational formations. The trap model we developed was a 2×2×3 m cage equipped with a 2×1 m door that we operated manually from a distance. We used live traps measuring 0.5×0.5×0.5 m simultaneously with large traps. We provided weekly bait stations using ca. 20 kg of food 1–2 mo before capture, during which we developed a whistle emulating a type of vocalization emitted by the primates that we used to habituate and attract the group to the bait station. The technique was very useful to find groups and to attract them more easily to the traps. We physically contained the captured individuals with nets, followed by manual restraining. For chemical restraining, we applied an anesthetic protocol based on the use of Zoletil ®.We kept the subjects in smaller cages until they recovered from anesthesia, and maintained them in the cages thereafter, facilitating the attraction of other individuals to the larger cage.Wecaptured 85 capuchins in the State of Parana. Of the individuals that could be sexed, 65.1% were males and 34.8% were females. In addition to the capture of primates, we showed that the type of cage described here was versatile enough to capture other mammals such as tayra(Eira barbara), peccary(Pecari tajacu), and coatis(Nasua nasua). Because of the similarity in the foraging behavior and diet among capuchin species, we suggest that the program described here could be extended to the capture of other species in thegenus Cebusthroughout its geographical range. We also describe a list of steps that need to be taken, based on our satisfactory results in several different localities, to conduct a capture program that is both efficient for researchers and safe for the subjects.

Howlers (genus Alouatta) are widely captured with the use of anesthetic projectiles; however, no capture protocol involving the use of traps has been described to date. In the present study we describe the first efficient capture program for black and gold howlers (Alouatta caraya) using traps, which was implemented on the islands of the upper Paraná River in southern Brazil. We constructed two trap models with either manual or automatic activation (trap A with two entrances and guillotine-type doors; trap B with one entrance and a guillotine-type door). The traps were suspended in the canopy by means of vertical climbing techniques, and were baited regularly and abundantly with bananas and mangoes. We captured 70 howlers (86% using manual activation and 14% using automatic activation) on four different islands. We restrained 41 of these animals and measured their body mass, which averaged 5.30 kg+/-1.79. Given our results, we suggest that the system described in the present study represents an alternative capture program for howlers in areas that have low food diversity and no other mammal species that will compete for the bait, as has been observed in riparian environments, islands, and forest fragments.

Este trabalho relata um caso de tentativa de infanticídio por um macho residente e dominante de um grupo de Alouatta caraya (Humboldt, 1812) em um infante extra-grupo, em ilha do rio Paraná, Paraná, Brasil. O encontro do par fêmea-infante com o macho residente foi propiciado pela interferência humana. Devido às circunstâncias em que ocorreu o fato e a posição hierárquica do agressor, a hipótese de patologia social pareceu plausível na explicação do comportamento.

Howler monkeys (Alouatta Lacèpéde, 1799) are folivores-frugivores with flexible diets depending on conditions. Here, we compare the diets of Alouatta caraya (Humboldt, 1812) in two riparian forests (island and mainland), in Porto Rico region, Upper Paraná River, Southern Brazil. Howlers were followed from October 2004 to September 2005 in the riparian forest of a 1,050 ha island and in the continuous riparian forest on the mainland (left bank of the river). The "scan sampling" method with instantaneous samples every 15 minutes was used. Besides vines, diet breadth was similar: 17 species consumed on the island versus 16 species on the mainland. Both consumed leaves followed by fruits more than any other food type (leaves: island - 65%, mainland - 49%, fruits: island - 24%, mainland - 46%). Even though the plant Cecropia pachystachya Trécul is less abundant in the mainland it was the item most consumed in both locations all year long, which suggests its importance for the howlers. Diet also varied both seasonally and between the island and mainland, apparently following changes in local abundance of each item and due to plant phenologies. Os bugios (Alouatta Lacèpéde, 1799) são primatas folívoros-frugívoros que podem adaptar suas dietas dependendo das condições do ambiente. O presente trabalho compara a dieta de grupos de Alouatta caraya (Humboldt, 1812) presentes em matas ciliares estruturalmente diferentes (ilha e continente), na região de Porto Rico, Alto rio Paraná, sul do Brasil. Os bugios-pretos foram seguidos de outubro de 2004 a setembro de 2005 em mata ciliar de uma ilha fluvial de 1050 ha e em mata ciliar contínua da margem esquerda do rio. Foi utilizado o método "scan sampling" em amostragens instantâneas com intervalos de 15 minutos. Além das lianas, 17 espécies foram consumidas na ilha versus 16 espécies no continente. Ambos os grupos consumiram mais folhas seguido de frutos do que qualquer outro tipo de alimento (folhas: ilha - 65%, continente - 49%, frutos: ilha - 24%, continente - 46%). Apesar de Cecropia pachystachya Trécul ser menos abundante no continente, foi o item mais consumido em ambas localidades durante todo o ano, o que sugere sua importância para os bugios. As dietas também variaram sazonalmente e entre os locais, aparentemente seguindo mudanças em abundâncias dos itens e devido à fenologia.

The region of Porto Rico, on the Upper Paraná River, is a contact zone between the Atlantic Rainforest and the Cerrado, with elements of the Pantanal wetlands. During surveys from September 2003 to September to 2005, we recorded the presence of non-volant mammals on 14 islands and the adjacent riverbanks. Surveys were by foot and by boat, and we also interviewed local people about the mammals of the region. Sightings of three primate species - Cebus nigritus (Goldfuss, 1809) (left margin of the river), C. libidinosus Spix, 1823 (right margin) and Alouatta caraya (Humboldt, 1812) (both margins and 12 islands) - were plotted on a satellite image. Alouatta clamitans Cabrera, 1940 was not recorded. However, interviews indicated that this species has occurred in this region in the past. The survey of mammals revealed the occurrence of 32 native species, a native genus with one or more unidentified species, and two introduced species [Lepus europaeus Pallas, 1778 and Sus scrofa (Linnaeus, 1758)]. The study discusses the permeability of the Paraná River to dispersal, as well as its potential as a geographical barrier to some species. Hypothesis on the local extinction of A. clamitans is also addressed. This study provides information that can be useful for promoting the conservation of this region. A região de Porto Rico, Alto Rio Paraná, é zona de contato entre a Mata Atlântica e o Cerrado, com influências do Pantanal. Este estudo levantou as espécies de primatas da região para a confecção de um mapa de ocorrências. Listou-se as ocorrências de mamíferos não-voadores, discriminando os registros entre os ambientes de ilhas e margens opostas. Para tanto, além do auxílio de entrevistas, as matas de 14 ilhas e das margens foram percorridas por terra e de barco durante setembro de 2003 a setembro de 2005. Pontos de avistamento dos primatas foram plotados em imagem de satélite. Três espécies de primatas foram registradas: Cebus nigritus somente na margem esquerda do rio e em uma ilha próxima do continente; C. libidinosus somente na margem direita e Alouatta caraya em ambas as margens do rio e em 12 ilhas. Alouatta clamitans não foi encontrada, porém sua ocorrência passada foi registrada durante as entrevistas. O levantamento listou a ocorrência de 32 espécies nativas, um gênero com espécie(s) não identificada(s) e duas espécies introduzidas (Lepus europaeus e Sus scrofa). Este trabalho discute a permeabilidade do Rio Paraná para a dispersão e barreira geográfica para certas espécies. Hipóteses para a extinção de A. clamitans são discutidas. Este estudo promove informações úteis para a conservação da região.