肉眼所見が乏しくヨード染色で初めてわかったⅡb型早期食道癌の1例

Intraepithelial Carcinoma Able to be Found Only by Endoscopic Iodine Staining Method, Report of a Case

要旨　患者は70歳，男性．68歳時，肺癌（T₂，N₂，M₀，StageⅢ）で左肺全摘術を受けた．その後再発の所見を認めなかった．2年後検診目的で当科来院し，上部内視鏡検査を施行され，切歯列から約28cmに通常の内視鏡所見が乏しいが，ヨード撒布で径10mm大の不染域を指摘された．Ⅱb型早期食道癌（ep癌）と診断し，内視鏡的粘膜切除を施行した．組織学的には高分化型扁平上皮癌，深達度epであった．

　A70-year-old male with no complaint was referred to our hospital. An intraepithelial carcinoma was visible only by the endoscopic iodine staining method. The lesion was hard to locate by ordinary observation. He underwent endoscopic mucosectomy for the esophageal mucosal lesion. Histologically, this lesion was a well differentiated squamous cell carcinoma. The lesion was limited to within the intraepithelium.