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Korean J Gastrointest Endosc. 2011 Jun;42(6):410-414. Korean. Case Report.
Kang HJ , Kwak DH , Choi MH , Kim HT , Kwak TY , Lee HC , Kim YS , Kim JH .
Department of Internal Medicine, Kwak's Hospital, Daegu, Korea.
Department of Pathology, Kwak's Hospital, Daegu, Korea.

Clostridium difficile is the most common nosocomial pathogen of the gastrointestinal tract. Pseudomembranous colitis occurs as a result of a severe inflammatory response to Clostridium difficile toxins. Pseudomembranous colitis is an increasingly frequent cause of morbidity and mortality among elderly hospitalized patients. Diarrhea is the most common manifestation. According to the literature, stools are almost never grossly bloody, and range from soft and unformed to watery or mucoid in consistency. We now report the cases of three patients with pseudomembranous colitis whose main clinical manifestation was hematochezia.

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