Depressed-type early colon cancer that was diagnosed by a positive fecal occult blood test and resected curatively by endoscopic submucosal dissection

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  • 大腸がん検診の便潜血検査を契機に発見され内視鏡的に治癒切除しえた表面陥凹型早期大腸癌の1例
  • 症例報告 大腸がん検診の便潜血検査を契機に発見され内視鏡的に治癒切除しえた表面陥凹型早期大腸癌の1例
  • ショウレイ ホウコク ダイチョウ ガン ケンシン ノ ベンセンケツ ケンサ オ ケイキ ニ ハッケン サレ ナイシキョウテキ ニ チユ セツジョ シエタ ヒョウメンカンオウガタ ソウキ ダイチョウガン ノ 1レイ

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An asymptomatic man in his 60s with no past or family history of cancer showed a positive result for fecal occult blood test (FOB) during a health check-up. Total colonoscopy identified an irregular, slightly depressed, light reddish lesion of 5 mm in diameter in the descending colon, which was endoscopically diagnosed as a well-differentiated adenocarcinoma localized within the mucosal layer. The patient underwent endoscopic submucosal dissection (ESD). The histopathological examination revealed the following findings: type IIc, 5 × 5 mm, tubular adenocarcinoma, very well-differentiated (tub1), pTis (M), ly0, v0, VM0, HM0. No recurrence has been observed during the 6 months after the operation. Thus, screening by FOB was found to be useful for making a diagnosis of depressed-type early colon cancer, which was curatively resected by ESD.

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