Atlas of Gastroenterological Endoscopy
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The different forms of colitis depicted in this chapter partly carry fairly similar features. This is explained by the limited possibilities of the colonic mucosa to react to an acute or chronic stimulus. Thus the clinical symptoms in addition to the endoscopic picture gain extra- ordinary importance. Consequently we tried to list the Differential diagnosis of colitis in short tables.
Infectious colitis - staphylococcal enteritis
infectious colitis infectious colitis
Carcinoma of the rectum treated by rectum amputation and artificial anus. Previous chemotherapy promoted the infection. Hallmark of the clinical picture is bloody diarrhea, high temperature and a worsened general condition. To the left extensive mucosal necrosis and hemorrhage in the descending colon seen in infectious staphyllococcal colitis. The pathological changes extend to the left flexure only, initially raising suspicion of an ischemic colitis. Histology and microbiology of stool specimen exclude the latter and corroborate the former diagnosis. To the right second look after 2 weeks of antibiotic treatment. The mucosa is recovering and shows a healing necrosis with erythematous edges and rarified vessels.
Infectious colitis of unkown pathogen
infectious colitis The mucous membrane exhibits an edema, hemorrhagic lesions and rarefied vessels. The changes extend from the rectum to the the aboral third of the transverse colon. The clinical picture is dominated by diarrhea, history includes a recent infection. Histology reveals an infectious colitis. Microbiology fails to isolate a definite pathogen.