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要旨 患者は70歳代,男性.健診での経鼻内視鏡検査で早期胃癌と観察診断すべき病変を見い出したが,生検ではGroup 1であり悪性細胞は得られなかった.直ちに経口内視鏡で再生検を行い高分化管状腺癌と診断されたため,ESD(内視鏡的粘膜下層剝離術)を施行した.切除標本の病理学的所見ではgastric adenocarcinoma,pType0-IIc,20×10mm,tub1,pT1a(M),ly0,v0,HM0,VM0,UL(-),であった.経鼻内視鏡検査は生検操作に難渋することがあるため画像所見がいっそう重要であり,想定される生検組織診断が得られなかった場合には,時間を置かず経口内視鏡での再検査を実施すべきであると考えられた.
A case of a man in his seventies. Transnasal endoscopy showed the lesion suspected to be early gastric cancer, in the health examination. However the histological finding was Group1 at the first biopsy. Another day, we carried out conventional endoscopy, and the secondary biopsy examination resulted in well-differentiated adenocarcinoma. ESD(endoscopic submucosal dissection)was performed, and the pathlogical diagnosis was gastric adenocarcinoma, pType0-IIc, 20×10mm, tub1, pT1a(M), ly0, v0, HM0, VM0, UL(-). In transnasal endoscopy, pictures are more important because biopsy is sometimes difficult. We must carry out conventional endoscopy when we cannot find the histological evidence that we assume.
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