Small intestinal ganglioneuromatosis in a dog.

A 6-week-old Staffordshire Bull Terrier cross was presented with a 4-week history of vomiting and small bowel diarrhoea. Abdominal ultrasound showed thickening of the distal jejunum and ileum. The dog underwent two exploratory laparotomies, during which grossly abnormal sections of intestine were resected. The patient developed septic peritonitis 48 h after the second surgery, caused by dehiscence of an intestinal anastomosis, and was euthanased. All intestinal tissue samples were examined histopathologically and a diagnosis of gastrointestinal ganglioneuromatosis was made. Intestinal ganglioneuromatosis is rare and this case represents a novel occurrence in the small intestine of a dog.