胸腔鏡下に切除した肺癌合併前縦隔海綿状血管腫の1例

Mediastinal Cavernous Hemangioma with Concurrent Primary Lung Cancer Resected by Thoracoscopic Surgery：Report of a Case

はじめに　縦隔発生の血管腫はまれで，多彩な画像所見を呈するために術前に診断することは困難である．また，原発性肺癌を合併した縦隔海綿状血管腫例の報告はほとんどない．われわれは前縦隔腫瘍と肺癌を胸腔鏡下に切除し，縦隔腫瘍は海綿状血管腫と診断された症例を経験したため報告する．

Cavernous hemangiomas of the mediastinum （CHM） are relatively rare, accounting for 0.5％ of all mediastinal neoplasms, and they are difficult to diagnose preoperatively. Here, we reported a CHM with a primary lung carcinoma. A 69-year-old female was referred to our hospital. The chest computed tomography （CT） revealed multiple ground glass nodules in the upper and lower lobes of the right lung and an anterior mediastinal mass enhanced heterogeneously. The patient underwent video-assisted thoracoscopic surgery for the right S6 and the mediastinal tumor. A final diagnosis of CHM with concurrent lung adenocarcinoma was made. Cavernous hemangioma should be considered to be concomitant with lung cancer although it is rare.