Abstract: | The toxic megacolon is well known in colitis ulcerosa, in colitis ulcerosa, in colitis granulomatosa--Crohn's disease--it is by far rarer. The authors observed two cases among their patients. The emergency operation consisted in applying an ileostoma and several colostomata. The definitive treatment with colectomy and ileorectostomy was done after weeks respectively months. |