thoracic surgery
Medical specialty dealing with surgical treatment of organs inside the thorax (chest), such as the lungs, heart, and esophagus.
He is a specialist in thoracic surgery.
In thoracic surgery, operations on the lungs and heart are performed.
Cardiac surgery, a subspecialty of thoracic surgery focusing specifically on the heart.
Respiratory surgery, another subspecialty of thoracic surgery dealing with the lungs and airways.
Compound of 胸部 (きょうぶ, 'chest, thorax') and 外科 (げか, 'surgery').