<i>GIARDIA INTESTINALIS</i> INFECTION DIAGNOSED DUE TO ACCUMULATION OF WHITE FLUID IN THE DUODENUM

DOI
  • NISHIO Ayano
    Department of Gastroenterology, Kagawa Prefectural Central Hospital.
  • TAKAHASHI Sakuma
    Department of Gastroenterology, Kagawa Prefectural Central Hospital.
  • COLVIN Hugh Shunsuke
    Department of Gastroenterology, Kagawa Prefectural Central Hospital.
  • TANAKA Shigetomi
    Department of Gastroenterology, Kagawa Prefectural Central Hospital.
  • ISHIKAWA Shigenao
    Department of Gastroenterology, Kagawa Prefectural Central Hospital.
  • WATO Masaki
    Department of Gastroenterology, Kagawa Prefectural Central Hospital.
  • ANDO Midori
    Department of Pathology, Kagawa Prefectural Central Hospital.
  • NAKAMURA Satoko
    Department of Pathology, Kagawa Prefectural Central Hospital.
  • TOKORO Masaharu
    Department of Global Infectious Diseases, Graduate School of Medical Sciences, Kanazawa University.
  • INABA Tomoki
    Department of Gastroenterology, Kagawa Prefectural Central Hospital.

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Other Title
  • 乳白色の十二指腸液の貯留が診断の契機となったランブル鞭毛虫症の１例

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Abstract

<p>A 64-year-old man with a complaint of loose stools was found to have accumulation of white fluid in the duodenum at the time of EGD. Duodenal biopsies were performed, and histopathological examination revealed sickle-shaped and pear-shaped bodies on the mucosal surface, suggesting Giardia intestinalis. The patient was diagnosed with assemblage A-type G. intestinalis by microscopic examination and PCR-sequencing of duodenal fluid and stool samples. The patient was treated with metronidazole 750 mg/day for 7 days to deworm. After the treatment, the patientʼs stool returned to normal. One year later, EGD was performed, and white fluid accumulation was not observed in the duodenum. G. intestinalis was not detected by microscopic examination of stool samples, duodenal fluid, and duodenal biopsies; hence, it appeared that deworming was successful. G. intestinalis infection should be considered when white fluid accumulation is observed in the duodenum during EGD.</p>

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