Radial Artery Pseudoaneurysm at the Previous Site of Invasive Monitoring

This report presents a case of left radial artery pseudoaneurysm developing at the previous site of invasive monitoring. The patient had prosthetic mitral valve replacement one month earlier, and anti-coagulation theraphy had started on the first post-operative day. The patient’s radial artery aneurysm with a 4-centimeter diameter was resected and the radial artery was ligated.