Detection of right atrial hemangiosarcoma using nonselective angiocardiography in a dog

A 12-year-old intact female miniature Schnauzer dog with a history of depression, anorexia and weakness including one episode of collapse was examined. Past pertinent history included recent repeated bouts of vomiting and the passage of black loosely formed faeces. The dog was moderately dehydrated (8%), and had pale mucous membranes, a prolonged capillary refill time (3 sec), abdominal distension, and palpable hepatomegaly. Blood chemistry showed hyponatraemia, hypochloraemia, hyperphosphataemia, hypoproteinaemia and elevations in serum urea and liver enzymes. A large echogenic mass involving the right atrium and ventricle was seen on ultrasound examination. Nonselective angiocardiography was used to confirm the presence of large filling defect within the right ventricle. Cardiac haemangiosarcoma was found at PM examination..