ONLY 26 CASES of primary malignant tumors of veins have thus far been reported. Twenty-one of these were leiomyosarcomas, only seven of which originated outside the inferior vena cava: one in the left colic vein,3,6 three in the femoral vein,4,5,7 two in the internal jugular vein,1,7 and one in the long saphenous vein.2 Because of the rarity of this disease, an additional case of primary leiomyosarcoma is being described here.
Report of Case
A 33-year-old woman had had gradual swelling of the left leg for eight months. The pain she had felt at first soon disappeared.The entire limb was moderately edematous and slightly cyanotic. The temperature of the limb was normal, and arterial pulsations were palpable. Examination of the abdomen and pelvis and roentgenograms of the pelvis and left femur disclosed no abnormality. A diagnosis of thrombosis of the left iliac vein was made, and