title: Large mediastinal mass secondary to an aortocoronary saphenous vein bypass graft aneurysm.
abstract: A case of a 62-year-old man with a large mediastinal mass who had undergone aortocoronary bypass grafting 17 years earlier is presented. Computed tomography showed a 13-cm extrinsic cystic mass believed to represent a pericardial cyst or teratoma. Intraoperatively, the patient was noted to have an aneurysm of his right coronary artery bypass graft. We were able to find 4 other cases seen in this manner.
authors.affiliation: Pontiac Osteopathic Hospital, Michigan 48058.
authors.forename: D A
authors.initials: DA
authors.lastname: Forster
authors.forename: M S
authors.initials: MS
authors.lastname: Haupert
mesh_terms: D000783:Aneurysm / Q000209:etiology* / Q000601:surgery; D001026:Coronary Artery Bypass / Q000009:adverse effects*; D006801:Humans; D008297:Male; D008482:Mediastinum; D008875:Middle Aged; D012501:Saphenous Vein / Q000637:transplantation