Leiomyosarcoma of the inferior vena cava, reconstruction with interposition of prosthesis and anticoagulation
Abstract
Primary leiomyosarcoma of the vena cava is a very rare neoplasm that originates from the smooth muscle cells of the tunica media. It represents 2% of all the leiomyosarcomas and 60% of the vena cava tumors. We report a case of 64-year-old patient consulting for a lower right back pain. The computed tomography shows a large retroperitoneal mass which encompasses the inferior vena cava and involves of right kidney. The surgical treatment of tumor resection is performed with right nephrectomy and interposition of Dacron prosthesis. The anatomopathological study shows a high-grade leiomyosarcoma, not compromising the renal capsule, with resection free. Radical resection with negative margins currently offers the best survival rate. Anticoagulation treatment for patients with prosthesis placement is still under discussion.
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