title: Free-floating calculi in the pericardial cavity.
mesh_terms: D000328:Adult; D002137:Calculi / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery; D005260:Female; D006331:Heart Diseases / Q000000981:diagnostic imaging / Q000473:pathology; D006801:Humans; D010496:Pericardium / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery; D011859:Radiography