伸展する肺内異物性肉芽腫に手術を施行した1例

Pulmonary Partial Resection for a Lung Foreign Body （Watermelon Seed）：Report of a Case

はじめに　肺内異物，すなわち末梢性の気道異物にはさまざまなものがあるが，歯科用補綴物や食物などの中枢性の気管支異物と異なり，伏針，Kirschner鋼線などの金属製異物がほとんどである1）．また，異物は経時的に肉芽を誘発するが，その肺内異物性肉芽腫形成の経過を示した報告は少ない2）．われわれは，スイカの種が原因となった肺内異物性肉芽腫に対し手術を施行した症例を経験したので報告する．

We experienced a case of a foreign body in the lung with granuloma by aspiration of watermelon seeds. A 72-year-old woman who had been diagnosed as having lung foreign body was admitted to our hospital for the treatment of the pulmonary shadow caused by the granuloma. A foreign body could not be identified by bronchoscopy, and the thoracoscopic partial resection of right S4 was performed. The postoperative course was uneventful, and the patient was discharged from our hospital on the second day after the operation.