Abstract
In a one-year-old male rabbit with anorexia, radiography and ultrasonography showed in the caudal part of the stomach a 35.0×29.7 mm mass, which was found to be two tumors after being removed surgically. The mass was adhered too firmly to the distal colon to remove, so the site of the colon was resected with the mass, and an end-to-end anastomosis was created. The tumors were abscessed with a hairball and feces-like material in them. In bacteria culture tests, gram-negative bacilli, Esherichia Coli, were detected in both tumors. These findings suggest the possibility of perforation of the colon.
