術前の心エコーで心房中隔瘤を指摘された肺癌

Lung Cancer Associated with Atrial Septal Aneurysm Detected on Preoperative Echocardiogram

心房中隔瘤（atrial septal aneurysm：ASA）は心房中隔が拍動に伴い左右の心房に交互に突出する病態をいい，時に脳梗塞など血栓性疾患を伴う．われわれは，術前の心エコーでASAが偶然発見された右肺癌の1例を経験した．比較的まれではあるが，脳梗塞との関連上，肺癌診療においても重要であると思われたので報告する．

We herein report a case of 71-year-old man who was diagnosed as right lung cancer associated with atrial septal aneurysm （ASA）. ASA was incidentally detected on transthoracic echocardiography as a routine preoperative examination. Although upper lobectomy was performed without any postoperative event in this case, generally care must be taken for important comorbidity of cerebral infarction as a potential source of systemic thromboembolism both in pre- and post-surgery.