Anorectal Region of Infectious Colitis Kiyotaka Okawa 1 , Wataru Ueda 1 , Koji Sano 1 , Takehisa Suekane 1 , Tetsuya Aoki 2 , Hideto Oiya 3 1Department of Gastroenterology, Osaka City General Hospital, Osaka, Japan 2Department of Internal Medicine, Osaka City Sumiyoshi Hospital, Osaka, Japan 3Oiya Clinic, Osaka, Japan Keyword: 直腸肛門部病変 , アメーバ性大腸炎 , クラミジア直腸炎サイトメガロウイルス腸炎 , 尖圭コンジローマ pp.1321-1330
Published Date 2010/7/25
DOI https://doi.org/10.11477/mf.1403101986
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 Several infectious forms of colitis, including STD(sexually transmitted disease) most commonly occurs in the rectum. 88% of amebic colitis occurs in the rectum. Endoscopic features of amebic colitis are multiple erosions or small ulcers with redness and bleeding. Chlamydia trachomatis proctitis appears as lymphoid hyperplasia in the lower part of the rectum. Ulcerative colitis and idiopathic lymphoid hyperplasia are important in the differential diagnosis of chlamydia trachomatis proctitis. About 50% of CMV(cytomegarovirus) enterocolitis occurs in the rectum. It often develops in patients with acquired immunodeficiency syndrome. Acute hemorrhagic rectal ulcer, ulcerative colitis and amebic colitis are important in the differential diagnosis of CMV enterocolitis. Most Campylobacter enterocolitis and some of Enterohemorrhagic Escherichia coli-induced colitis extend to the rectum. Condyloma acuminatum occurs in the anal canal and skin surrounding the anus, and sometimes extends to the rectum. Most cases of amebic colitis, chlamydia trachomatis proctitis and condyloma acuminatum are STD. We described diagnosis and differential diagnostic methods for these disease.

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