title: Lipomatous hamartoma of the tricuspid valve: echocardiographic-pathologic correlations.
abstract: We report the eighth example of a cardiac valvular hamartoma (five mitral, three tricuspid). An intracavitary right atrial mass was present in a 76-year-old man and was characterized echocardiographically by a mobile cystic structure involving the septal tricuspid leaflet. Microscopically, the affected leaflet was comprised predominantly of mature adipose tissue. Formation of a valvular windsock in this case was attributed to the chronic effect of right ventricular pressure on tissue that was weaker than a normal leaflet. Valvular hamartomas should be included in the differential diagnosis of lesions that produce prolapsing, cystic, or windsock malformations of atrioventricular valves.
authors.affiliation: Division of Pathology, Mayo Clinic, Rochester, Minnesota 55905.
authors.forename: T B
authors.initials: TB
authors.lastname: Crotty
authors.forename: W D
authors.initials: WD
authors.lastname: Edwards
authors.forename: J K
authors.initials: JK
authors.lastname: Oh
authors.forename: R J
authors.initials: RJ
authors.lastname: Rodeheffer
mesh_terms: D000368:Aged; D003937:Diagnosis, Differential; D004452:Echocardiography; D006222:Hamartoma / Q000000981:diagnostic imaging / Q000473:pathology*; D006338:Heart Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology*; D006349:Heart Valve Diseases / Q000000981:diagnostic imaging / Q000473:pathology*; D006801:Humans; D008067:Lipoma; D008297:Male; D014261:Tricuspid Valve / Q000000981:diagnostic imaging / Q000473:pathology*