Immunohistochemical StudyRight AtriumCardiomyopathyMedicinePathologyElectron MicroscopicUnusual FeaturesCardiac AngiosarcomaConstrictive PericarditisCardiologyCardiac Pathology
A cardiac angiosarcoma occurred in the right atrium of a 15-year-old boy. Unusual features included the patient's young age and the antemortem pathologic diagnosis of the tumor.