A 3 year-old, neutered male, Bassett Hound presented for evaluation of acute onset of vomiting which had progressed to include anorexia and weight loss over a one week period. The dog had initially responded to symptomatic therapy. However, at home he continued to refuse food and had resumed vomiting. The description of the dog's ''bringing up of food" was that of a passive action with no retching or abdominal contraction. Physical examination revealed normal body temperature, pulse rate, and respiratory rate. The dog was bright and alert but was not very active. No abdominal abnormalities were noted upon palpation. Thoracic auscultation was normal.