腸管囊胞に対し人工気胸を併用した腹臥位胸腔鏡下手術

Thoracoscopic Resection of a Mediastinal Enteric Cyst Assisted with Artificial Pneumothorax in the Prone Position

近年胸腔鏡下手術は低侵襲性，技術の進歩により，より多くの縦隔腫瘍に対し適応されるようになった．われわれは，人工気胸下腹臥位胸腔鏡下手術を経験したので，その方法と工夫について報告する．

Mediastinal enteric cysts are very rare among in adults and usually asymptomatic. A 54-year-old male was referred to our hospital due to an abnormal shadow incidentally found on a chest X-ray at health check. Chest computed tomography scan revealed a cystic mass in the posterior and inferior mediastinum surrounded by diaphragm, inferior vena cava, and esophagus. Based on many reports of thoracoscopic esophagectomy in the prone position in recent years, we chose thoracoscopic resection of the mediastinal tumor in the prone position with artificial pneumothorax. The prone position with artificial pneumothorax provided much better exposure of the operating field and the surgery was performed successfully.