[Pulmonary Herniation Requiring Reconstructive Surgery Caused by Minimally Invasive Cardiac Surgery:Report of a Case].

A 72-year-old man who underwent aortic valve replacement by a minimally invasive cardiac surgery (MICS) approach two years ago was visited our hospital complaining of swelling and pain in the right anterior chest. A chest computed tomography (CT) scan showed that the right upper lobe protruded beyond the right second intercostal space and outside the thorax. He was diagnosed as a right intercostal lung hernia and underwent chest wall reconstruction with a substitute method. Postoperative course was uneventful without any evidence of recurrence. Postoperative intercostal lung hernias in MICS may increase with the increment in MICS, and it is necessary to accumulate cases as one of the complications.