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Giardiasis Accompanied by an Increased Serum CA19-9, Report of a Case Kouichi Asano 1 , Yuichi Mochizuki 1 1Department of Internal Medicine, Nippon Steel Yawata Memorial Hospital Keyword: ランブル鞭毛虫症 , 消化管検査 , CA19-9 pp.849-854
Published Date 2002/5/25
DOI https://doi.org/10.11477/mf.1403103536
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 A 49-year-old man was admitted to our hospital complaining of diarrhea and weight loss. Laboratory data revealed that he was suffering from alcoholic liver cirrhosis and diabetes mellitus. His serum CA19-9 was elevated to 301.9 U/ml. Upper gastrointestinal radiography and endoscopy revealed diffusely coarse mucosa and scattered aphthous lesions in the duodenum and in the proximal part of the jejunum. Numerous trophozoites of Giardia lamblia were detected in the duodenal biopsy specimens and in the bile juice. Based on these findings, we diagnosed the patient as having giardiasis. A treatment by metronidazole improved his abdominal symptoms, as well as findings in the duodenum. His serum CA19-9 was decreased to 120.3 U/ml. Our case suggest that, under radiography and endoscopy, the duodenal involvement in giardiasis may be obscure. Other procedures such as duodenal biopsy should be considered in cases suspected of having giardiasis.


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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