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要旨 〔症例1〕53歳,男性.2000年6月,食道扁平上皮癌に対し,EMR施行〔SM1,ly(+),v(+)〕.追加治療として化学放射線療法を施行.6年後に異時性食道癌を発見し,EMRを施行.病理学的には,扁平上皮癌T1a-MM,ly0,v0と診断された.〔症例2〕61歳,男性.2000年11月,食道扁平上皮癌に対し,EMR施行〔SM1,ly(-),v(+)〕.追加治療として化学放射線療法を施行.5年後に異時性食道癌を発見し,EMR施行.病理学的には,扁平上皮癌T1a-MM,ly1,v0と診断された.2例とも,6か月ごとの内視鏡検査にて発見された.いずれも,10mm以下の小癌であったが,周囲に盛り上がりを伴う陥凹性病変であり,深達度T1a-MMの浸潤を示す,発育の早い病変と考えられた.
〔Case 1〕a 53-year-old male. We performed EMR for squamous cell carcinoma of the esophagus in June, 2000〔SM1, ly(+), v(+)〕. We performed chemoradiotherapy as adjuvant treatment. We diagnosed metachronous esophageal cancer six years later and performed EMR. Pathologicallyit was diagnosed as squamous cell carcinoma T1a-MM, ly0, v0.
〔Case 2〕a 61-year-old male. We performed EMR for squamous cell carcinoma of the esophagus in November, 2000〔SM1, ly(-), v(+)〕. We performed chemoradiotherapy as adjuvant treatment. We diagnosed metachronous esophageal cancer five years later, and performed EMR. Pathologically it was diagnosed as squamous cell carcinoma T1a-MM, ly1, v0. The two cases were diagnosed by six monthly endoscopic examination. The carcinoma were small, equal to less than 10mm, but it was that their growth rate was fast, and it was noted that they were collapsed lesions whose circumference had swelled. In addition, both of the lesions had an invasion depth of T1a-MM.
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