肺癌手術時に偶然発見された先天性心膜欠損症の2例

Congenital Pericardial Defect Incidentally Discovered During Lung Cancer Surgery：Report of Two Cases

はじめに　先天性心膜欠損症は比較的まれで，一般的には無症状で経過するため，剖検や胸部手術の際に偶然発見されることが多い．われわれは，左上葉肺癌に対する胸腔鏡手術時に偶然発見された，ほぼ同様の部位での部分的な先天性心膜欠損症を2例経験したので報告する．

Congenital pericardial defect is a rare congenital condition. It is often asymptomatic and discovered incidentally, frequently during autopsies, medical investigations, or surgery. Nevertheless, there are few reported cases of its discovery during lung cancer surgery. Lung cancer surgery can lead to changes in lung volume, potentially resulting in postoperative complications. Hence, it is crucial to consider potential complications and exercise caution when determining the course of action, taking into account the extent of the pericardial defect.