[Simple ulcer of the colon. Considerations on a case].

A case of "simple ulcer" of the colon is reported. The lesion is uncommon and not well known. As far as pathogenesis is concerned, the Authors emphasize the role of peptic, neurogenic, circulatory, bacterial, toxic and mechanical factors. The following clinical picture was observed: sudden and acute abdominat pain due to colonic perforation with pneumoperitoneum. As already described by literature preoperative correct diagnosis was not possible; this is usually due to the fact that the ulcer tends to perforate before other symptoms arise. During surgery suture of the ulcer, temporary colostomy and Mikulicz's drainage were performed; after 4 months colostomy was closed.