A CASE-REPORT OF DOUBLE-ORIFICE TRICUSPID-VALVE

A heart specimen with double-orifice tricuspid valve is described. The tricuspid valve was divided into the anterior and posterior orifices by a bridge of leaflet tissue. The valve was stenotic because of the a rcade deformity of the anterior papillary muscle to which the bridging leaflet tissue had short chordal insertions. The anterior orifice was regurgitant as a result of a deficient septal leaflet. Clinical corre lation was obtained by magnetic resonance imaging of the specimen. The functional significance of the malformed valve was assessed by three- dimensional reconstruction of the two-dimensional magnetic resonance i mages.