2000 Volume 11 Issue 3 Pages 259-264
Leiomyosarcoma of inferior vena cava is rare tumor reported only 40 oases in Japanese literature.
A 44-year-old woman was admitted to the hospital because of the edema of bilateral lower extremities and proteinuria. CT and magnetic resonance imaging revealed a tumor in the inferior vena cava extending into the left renal vein. Laparotomy revealed a dilated inferior vena cava containing elastic hard mass, surface of which was smooth and not adherent to the surrounding structures. Tumor occupied the inferior vena cava from just below the level of hepatic vein to just below the renal veins and the left renal vein. Inferior vena cava was completely obstructed. The tumor in the inferior vena cava and left renal vein were completely resected by phlebotomy and concomitant left nephrectomy. Histologic diagnosis was leiomyosarcoma, however its origin could not be clarified. CT scan performed 17 days after surgery revealed no residual mass in the inferior vena cava. She is asymptomatic and doing well.
