最大径5mmの微小肺野型腺癌の1切除例

金沢大学附属病院内分泌・総合外科A 52-year-old woman was admitted due to a traffic accident. The chest CT scan showed a small nodule 4 mm in diameter with irregular margins in S2 of the right lung. The chest CT scan 1 month later showed that the nodule had increased to 5 mm in diameter with pleural indentation. As lung cancer could not be ruled out open lung biopsy was performed. Since frozen section diagnosis showed lung cancer right upper lobectomy and lymph node dissection were performed. The pathological diagnosis was well differentiated papillary adenocarcinoma of the lung with no lymph node metastasis.症例は,52歳,女性.交通事故の際,施行した胸部CT検査で右肺上葉S2に葉間胸膜の巻き込みを伴う小結節影を偶然認めた.約1ヵ月後のCTにおいても,悪性病変の可能性が否定できなかったため,胸腔鏡補助下に開胸肺生検を施行した.迅速病理診断にて悪性の可能性が強く示唆されたため,右肺上葉切除術,及びリンパ節郭清を施行した.病理組織学的には最大径5mmの高分化型乳頭状腺癌であった