Primary Liposarcoma of the Right Ventricle and Pulmonary Artery: Surgical Excision and Replacement of the Pulmonic Valve by a Björk-Shiley Tilting Disc Valve

: A case of primary liposarcoma of the right ventricle and pulmonary artery is presented. The clinical picture, diagnostic studies, operative treatment and postoperative evolution are commented upon. Attention is drawn to the fact that this is the third case of liposarcoma of the heart to be operated upon, and the first needing pulmonary valve replacement. The literature related to this exceedingly rare primary neoplasm of the heart is reviewed.