Cholangiocellular carcinoma in a cat / Carcinoma colangiocelular em gato

ABSTRACT

Background: Primary hepatobiliary tumors are rare in dogs and cats. Studies suggest a prevalence of 0.6% in dogs and 2.9% in cats from all occurring tumors. Neoplasia in these tissues can have hepatocellular and bile ducts origin or even be sarcomas or neuroendocrine tumors. Its clinical signs are nonspecific and the diagnosis is most often tardy or even done during necropsy. A case of cholangiocellular carcinoma and glomerulonephritis in a cat is reported, addressing its clinical aspects and emphasizing the importance of an early diagnosis. Case A mixed breed, 12-year-old neutered cat was admitted in the Veterinary Teaching Hospital of the Federal University of Rio Grande do Sul treated previously without obvious improvement. Jaundice, severe dehydration, excessive salivation, low body condition (score three out of nine), abdominal discomfort, and lethargy were evident on physical examination. Blood tests showed neutrophilic leukocytosis, lymphopenia, and increased serum levels of both alanine aminotransferase and alkaline phosphatase enzymes. Abdominal ultrasound examination revealed a large single mass of three centimeters of diameter, approximately, compressing the bile ducts. Because of the severity of the patients condition, it was hospitalized to receive supportive care. During hospitalization, the animal received feeding through an esophageal tube, intravenous fluid...(AU)