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Copyright of Revista Médica MD is the property of Comite Editorial de la Revista Medica MD 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.)

Copyright of Revista Experiencia Médica is the property of Hospital privado CMC-S.A. 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.)

Copyright of Archivos Latinoamericanos de Nutrición is the property of Sociedad Latinoamericana de Nutricion 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.)

Pica is a eating disorder, of the eating behavior in childhood. It is defined as the persistent intake of non-nutritional substances for at least one month, in an inappropriate way from an evolutionary perspective, and provided that its practice is not culturally banned. Many animal species, including primates, have this behavior. Documented from antiquity, in most cases it has been considered a symptom of another related disorder rather than as independent condition. Its prevalence is unknown. It is mainly described in mentally disabled people, pregnant women, autism, mentally ill patients, children, and others. The ingestion of earth, ice, starch, ropes, wood, and other products has been observed, although some authors also include the obsessive and reiterative consumption of eatable substances. Geophagia is considered a cultural phenomenon, although sometimes may lead to disease, and an form of paleomedicine or paleonutrition. The etiology of pica is unknown and it has no markers. Sensitive, digestive, nutritional, psychological, and psychiatric factors have been implicated in its origin and maintenance. Although the morbimortality is unknown and difficult to study, we may highlight intoxications, parasitic diseases, and surgical abdomen with serious complications. Finally, as in other eating behavior disorders, the global management of this entity requires a coordinated intervention of different health care professionals. [ABSTRACT FROM AUTHOR]

Introduction: Patients with gastric cancer (GC) have a poor survival in advanced stages. Gastric atrophy is considered the first step towards development of GC. The gold standard for diagnosis of GC is the histopatological study . Gastric atrophy can be detected by analyzing serum levels of gastrin-17, Pepsinogen I, Pepsinogen II and IgG anti-H. pylori. Objective: To determine the usefulness of PGI, PGII, G-17 and IgG anti-H. pylori in the diagnosis of CAG in our population. Results: Eight patients were found with atrophy on histological examination, serum markers diagnoses with PGI < 25µg/L, PGI/ PGII <2.5, G-17 <10 pmol/L were: atrophic antrum gastritis 10 patients (20%), corpus five (10%), antrum and corpus one (2%). There were no differences in PGI, PGII and G-17 levels and the PGI/PGII ratio between patients with and without AG in histological examination. The diagnostic utility of serum markers were: sensitivity 50%, specificity 71%, positive predictive value 25%, 44 negative predictive value 88% and accuracy of 68%. The positive and negative likelihood ratios for chromendoscopy and the presence or absence of atrophy were six and 0.31, respectively. Nevertheless, the evaluation with chromoendoscopy showed good correlation with histology (kappa 0.55, p = 0.0001). Conclusions: Serological diagnosis of CAG in the studied population was of limited utility. However , it can be used as screening in patients who undergo endoscopy, due to its high negative predictive value. [ABSTRACT FROM AUTHOR]

Se presentan respuestas a preguntas relacionadas con el diagnóstico y tratamiento de una mujer con síndrome anémico, entre ellas ¿cómo investigar la causa de la anemia?, ¿cómo diagnosticar la hepatitis autoinmune? y ¿cómo interpretar los resultados de una biopsia hepática de la paciente?

Candidiasis is a primary or secondary mycosis manifested all over the world, caused by opportunistic endogen, exogen, or both, yeasts of Candida, specially C. albicans. It may affect skin, mucosae, and intern organs and may produce septicemias. Candidiasis affects frequently the skin, represents 2-3% of dermatological consultations and 10-15% of superficial mycoses. Its diagnosis is based on several laboratory techniques. CRHOMagar Candida is a cromogen via used for identifying Candida. It is also used as an isolation via and primary identification of yeasts in general from different biological specimens. [ABSTRACT FROM AUTHOR]