A case of spontaneous colonic perforation in collagenous colitis

Background Collagenous colitis (CC) is a clinicopathologic syndrome characterized by chronic watery diarrhea and distinctive histopathologic features. Spontaneous perforation of CC is extremely rare, because CC is usually managed medically, and the need for surgical intervention is rare. We report a surgical case of spontaneous colonic perforation of CC with acute abdomen disease.