Cardiac papilloma. A case report with evidence of thrombotic origin.

A pulmonic valve cardiac papilloma was found in a patient with coagulopathy and disturbed right ventricular hemodynamics. Fibrin was demonstrated within the cores of the papillae, lending further support to the thrombotic derivation of these lesions. The tumor's papillary configuration was thought to be the result of molding by the turbulent blood flow at that site.