両側肺門・縦隔リンパ節腫脹を伴うサルコイドーシス併存肺癌の1例

Lung Cancer Accompanied by Sarcoidosis with Mediastinal and Bilateral Hilar Lymphadenopathy；Report of a Case

はじめに　サルコイドーシスと肺癌が併存している場合，画像のみによる縦隔・肺門リンパ節転移の評価は困難であり，組織学的評価を要する．われわれは，両側肺門リンパ節腫脹を伴うサルコイドーシス併存肺癌の1例を経験したので報告する．

A 64-year-old woman with complete atrioventricular block caused by sarcoidosis was emergently placed a pacemaker. A 10 mm nodule in the left upper lobe of the lung and the mediastinal and bilateral hilar lymphadenopathy was detected through chest computed tomography. To establish the diagnosis, resection of the tumor and #4L was performed. By intraoperative pathology, the nodule was diagnosed as an adenocarcinoma and #4L was found to be a granuloma without metastasis of carcinoma. Subsequently, left upper lobectomy and lymph node dissection （ND2a-2） was conducted. Pathological stage was stageⅠA1 lung cancer. No recurrence has been noted for a year postoperatively and lymphadenopathy has improved by administering prednisolone medication.