胸腺癌手術4年後に発症した心囊気腫

Pneumopericardium 4 Years after Surgery of Thymic Cancer

心囊気腫は比較的まれな疾患であるが，心タンポナーデの危険があり重篤な病態となりうる．原因は外傷，隣接臓器の感染の波及，消化管の潰瘍，腫瘍の穿孔，医原性，異物誤飲など多様である1～3）．われわれは胸腺癌術後4年目に心囊気腫を発症した症例を経験したので報告する．

A 67-year-old man had undergone thymectomy with partial resection of the left upper lobe and pericardium for thymic cancer. Four years later, he visited our hospital due to chest pain. Chest computed tomography revealed pneumopericardium. Nine months later, surgical treatment was performed due to the development of the left pneumothorax. Air leak was found from the bulla which was partially incarcerated into the pericardial space.