Nonspecific ulcer of the caecum. Reports of 3 cases.

Benign ulcer of the caecum may mimic acute appendicitis or cancer of the colon. The aetiology is unknown. Most patients are operated on, and the pathologist's report may be unexpected. The ulcer may be diagnosed at colonoscopy and conservatively treated. Diseases which must be excluded are cancer and specific inflammatory, infectious and parasitic conditions.