Abstract
We report a successful case of a dog treated for canine insulinoma. The 13-year-old, unspayed, mixed-breed dog presented with ataxia as the main complaint. The dog was suffering from hypoglycemia with concomitant hyperinsulinemia, which suggested the presence of an insulin-secreting tumor. Surgically, an isolated nodular tumor was found in the pancreas, so partial removal of the pancreas was done, and a nearby lesion including an enlarged mesenteric lymph node was also removed. Histopathology confirmed the diagnosis of insulinoma accompanied by metastasis to a regional lymph node. Although the dog showed continuous hypoglycemia even after surgery, clinical signs caused by hypoglycemia have been well controlled for 320 days with medical treatment.
