RESUMEN
BACKGROUND: Platynosomiasis in non-human primates kept under human care causes chronic disease of the bile ducts and liver, which initially presents with nonspecific signs and can culminate in the death of the animal. Diagnosing this disease is a challenge, and an ultrasound examination can be an excellent tool when it is suspected. METHODS: This study describes the ultrasound findings from 57 marmosets with suspected infection by Platynosomum sp., the correlated hepatobiliary changes, and the anatomopathological findings that confirmed the occurrence of platynosomiasis. RESULTS: In six marmosets (one C. aurita, two C. jacchus, and three Callithrix sp.), Platynosomum infection was confirmed macroscopically (presence of adult trematodes in the gallbladder) and microscopically (adults, larvae, and eggs in histological examinations and eggs in bile and feces). These findings were compatible with the hepatobiliary changes and with images suggestive of parasitic structures in ante-mortem assessments. CONCLUSION: Ultrasound examination demonstrated its usefulness within the clinical routine for investigating this parasitosis.
Asunto(s)
Enfermedades de los Monos , Infecciones por Trematodos , Ultrasonografía , Animales , Ultrasonografía/veterinaria , Ultrasonografía/métodos , Enfermedades de los Monos/diagnóstico por imagen , Enfermedades de los Monos/parasitología , Enfermedades de los Monos/patología , Enfermedades de los Monos/diagnóstico , Infecciones por Trematodos/veterinaria , Infecciones por Trematodos/diagnóstico por imagen , Infecciones por Trematodos/diagnóstico , Infecciones por Trematodos/parasitología , Infecciones por Trematodos/patología , Masculino , Femenino , Callithrix , Hígado/patología , Hígado/diagnóstico por imagen , Hígado/parasitologíaRESUMEN
Reports of sarcomas in nonhuman primates are scarce and, specifically, primary hepatic sarcomas are rare, as in humans. This is the first report of an aggressive hepatic fibrosarcoma in a young adult Callithrix jacchus. The final postmortem diagnosis was obtained by means of immunohistochemical analysis, which confirmed the tumor histogenesis.