肺腫瘍との鑑別が困難であった横隔膜ヘルニアの1例

Diaphragmatic Hernia Mimicking Lung Tumor：Report of a Case

はじめに　横隔膜ヘルニアは横隔膜の欠損もしくは組織裂隙の開大に基づき，腹腔内臓器が胸腔内に脱出する疾患である．われわれは肺腫瘍との鑑別が困難であった横隔膜ヘルニアの1例を経験したので，若干の文献的考察を含め報告する．

A 59-year-old woman consulted our hospital because of an abnormal shadow on chest X-ray. A chest computed tomography （CT） revealed a tumor on the diaphragm. A diagnosis of lung tumor was suspected and she underwent video-assisted thoracoscopic surgery. The intraoperative findings revealed a tumor through the defect hole in the right diaphragm. Histological examination revealed fibrotic tissue. The final diagnosis was a diaphragmatic hernia. For lung tumors on the diaphragm, diaphragmatic hernia should also be considered in the differential diagnosis.