Diagnosis of Anorectal Diseases by Endoscopic Ultrasonography Kiyonori Kobayashi 1 , Miyuki Mukae 1 , Taishi Ogawa 1 , Kaoru Yokoyama 1 , Miwa Sada 1 , Mitsuhiro Kida 1 , Wasaburo Koizumi 1 1Department of Gastroenterology, Kitasato University East Hospital, Sagamihara, Japan Keyword: 直腸肛門部疾患 , 超音波内視鏡 , 画像診断 , 鑑別診断 pp.1381-1386
Published Date 2010/7/25
DOI https://doi.org/10.11477/mf.1403101992
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 Among anorectal diseases, the rectum is particularly prone to various types of tumors, as well as inflammatory bowel disease. Although rectal diseases are diagnosed mainly by colonoscopy, EUS can depict vertical cross-sectional images of lesions and is therefore useful for assessing the depth of invasion of rectal cancer and the qualitative diagnosis of submucosal tumors. In patients with inflammatory bowel disease, EUS can be used to evaluate the severity of UC and to diagnose anal lesions associated with Crohn's disease. Therefore, we believe that EUS is a useful technique for the diagnosis of anorectal diseases.

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