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The Japanese Journal of Thoracic Surgery Volume 71, Issue 6 （June 2018）

胸部外科 71巻6号（2018年6月発行）

Japanese English

症例

腸型肺腺癌切除の1例 Pulmonary Enteric Adenocarcinoma；Report of a Case 三浦賢仁 ¹ , 阪本俊彦 ¹ Kenji Miura ¹ , Toshihiko Sakamoto ¹ ¹神戸赤十字病院呼吸器外科 ¹Department of Thoracic Surgery, Japanese Red Cross Hospital Kobe キーワード：腸型肺腺癌 , 肺癌 Keyword: pulmonary enteric adenocarcinoma , lung cancer pp.476-479

発行日 2018年6月1日 Published Date 2018/6/1

DOI https://doi.org/10.15106/j_kyobu71_476

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参考文献 Reference

はじめに　腸型肺腺癌は世界保健機関（WHO）分類で特殊型に分類されるまれな組織型で，大腸癌肺転移との鑑別が困難であり，悪性度が高い組織型であるとされている．われわれは腸型肺腺癌の1例を経験したので報告する．

A 73-year-old man was referred to our hospital because of an abnormal shadow on a chest radiography. Chest computed tomography （CT） revealed a 3 cm nodule in the right lower lung lobe, fluorodeoxyglucose-positron emission tomography （FDG-PET） showed abnormal uptake in the tumor with a maximal standardized uptake value （SUV） max of 5.8. Bronchoscopy revealed adenocarcinoma cells. A right lower lobectomy and upper lobe partial resection and ND2a-1 were performed. Histological analysis revealed lung cancer comprising tall columnar cells. Immunohistochemical staining was positive in CDX2, CK20 and CK7. Any primary tumor was not found by postoperative screening. We diagnosed as a pulmonary enteric adenocarcinoma. After 6 months from operation, multiple recurrence was found and the patient died 8 months after operation.