Colonic high-grade tubular adenomas associated with Schistosoma japonicum

Jin Imai, Hitoshi Ichikawa, Hajime Mizukami, Takayoshi Suzuki, Norihito Watanabe, Tetsuya Mine

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)


We reported a case of sigmoid colonic high grade tubular adenomas associated with deposited ova of Schistosoma japonicum. A 76-year-old Japanese man was referred to our colonoscopy due to a positive fecal occult blood test. He had a medical history of schistosomiasis japonica. The colonoscopy revealed that there were two sigmoid colon polyps, approximately 8 mm in diameter. These were removed by endoscopic mucosal resection (EMR). Pathological examination revealed high grade tubular adenomas and deposited some ova of Schistosoma japonicum with severe fibrotic change and granuloma formation in the submucosal layer. Colonic schistosomiasis is a probable independent risk factor for the development of colorectal carcinogenesis.

Original languageEnglish
Pages (from-to)22-23
Number of pages2
JournalTokai Journal of Experimental and Clinical Medicine
Issue number1
Publication statusPublished - 2016 Apr
Externally publishedYes


  • Adenoma
  • Colon
  • Schistosoma japonicum

ASJC Scopus subject areas

  • General Medicine


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