Seven gastrocolic and five gastrojejunocolic fistulae were recorded at Charity Hospital between 1940 and 1970. Such fistulae occurred in males more often than females. In this series, as in others, the most common cause was gastric surgery for peptic ulcer disease. Pain, diarrhea, and weight loss were clinical findings in half the patients; anemia, leukocytosis, electrolyte disturbances and hypoalbuminemia were common laboratory findings. A fistula was demonstrated radiologically in nine of the twelve patients, management of these patients included no operation (3); two-stage procedure (2); and one-stage procedure (7); with a recent trend toward the one-stage procedure. A case report of a fistula resulting from postoperative complications of perforative appendicitis in which a successful combination of hyperalimentation and diverting colostomy was used is presented.