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Schistosomiasis Japonica Masahiko Ohtaka 1 , Masayuki A Fujino 2 , Yuichiro Kojima 2 , Tadashi Sato 2 , Katsuhiro Kubo 2 , Eulenia Rasco-Nolasco 4 1Health Care Center, Yamanashi Koseiren 2The First Department of Medicine, Yamanashi Medical University Keyword: 日本住血吸虫症 , 急性期病変 , 慢性期大腸鏡所見 , 不整形黄色斑 , 羽毛状・クモ状血管様変化 pp.454-458
Published Date 2002/2/26
DOI https://doi.org/10.11477/mf.1403103473
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 Schistosomiasis japonica is an infectious disease caused by Schistosoma japonica. In old times, this parasite was prevalent in five restricted regions in Japan. Foci are present in China, Taiwan, the Philippines, and the Celebes. Acute schistosomiasis and schistosomal intestinal disease usually cause diarrhea with blood and mucus. The endoscopic appearance is one of patchy mucosal congestion with petechia and erosions or ulcerations throughout the rectum and colon. The presence of inflammatory polypoid lesions marked by whitish surface exudates is specific. Endoscopic colorectal findings during chronic schistosomiasis japonica were characterized by the presence of various mucosal changes, either alone or associated with narrowing of the lumen. Typical mucosal changes were irregular yellow spots that coincided with the foci of ova, feathershaped or spider-like abnormal vascular pattern, and atrophic and smooth mucosa. Barium enema findings included disappearance of haustra and lead-pipe-like changes. Diffuse lesions were very similar to the appearance of ulcerative colitis in remission. No definite conclusion about the carcinogenicity of chronic schistosomiasis japonica was available.


Copyright © 2002, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1219 印刷版ISSN 0536-2180 医学書院

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