[Right Coronary Ostial Aneurysm after Modified Bentall Procedure with Carrel Patch Technique in a Patient with Marfan Syndrome:Report of a Case].

A 58-year-old man with Marfan syndrome visited our clinic for a routine examination. He had undergone a modified Bentall procedure with Carrel patch technique for annuloaortic ectasia 15 years previously. Computed tomography revealed an aneurysm of 43×57 mm in diameter at the right coronary ostium.