Leiomyosarcoma of veins.Report of 2 cases and review of the literature

Abstract

hioom MUSCLE tumors are common in the S uterus and by no means rare in the gastrointestinal tract, retroperitoneum, and superficial soft tissues. However, they have seldom been recorded as arising from large blood vessels. ,4be11,2 reporting 2 cases of leiomyosarcoma of the inferior vena cava, could cull only 6 tumors of smooth muscle, benign and malignant, that arose from the wall of the inferior rena cava. Stout and Hi11,28 in a review of 36 leiomyosarcomas of the superficial soft tissues, found only 1 arising in a large vein. This paper presents 2 cases of leiomyosarcoma, one primary in the inferior vena cava and the other in the right internal jugular vein, and reviews 27 previously reported tumors arising in major veins (Table