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A 50-year-old man with no history of cardiovascular disease was referred to our hospital because of an abnormal electrocardiogram. Echocardiograms and computed tomograms revealed a 9-mm mass on the underside of an aortic valve leaflet. We chose surgical treatment, to prevent embolic events. The tumor's appearance and intraoperative frozen section were consistent with myxoma. We resected the tumor and its attachment, including the free margin of the aortic valve leaflet, and repaired the defect with use of a glutaraldehyde-treated autologous pericardial patch. The postoperative histopathologic diagnosis was papillary fibroelastoma. Six months later, echocardiograms showed mild aortic regurgitation and no recurrence of the aortic valve mass. Papillary fibroelastoma and myxoma can be difficult to distinguish intraoperatively, yet the diagnosis has considerable influence on the surgical strategy, including whether valve-sparing excision is an option. Therefore, it is necessary to at least suspect both entities if the tumor characteristics are unusual. This case is instructive for surgeons and pathologists.

Autologous Pericardial Patch Repair for Papillary Fibroelastoma on an Aortic Valve Leaflet