A sixteen month old female cocker spaniel with diagnosis unknown was admitted to the Stange Memorial Clinic at the request of a referring veterinarian. The dog had been anorexic and depressed four days prior to being admitted. She was in a semi-comatose condition with spasmodic trembling of the body, the mucous membranes were pale and the temperature subnormal. There was evidence of blood in the feces. A poor prognosis was given because the animal was in a moribund condition.