Asymptomatic leiomyosarcoma of the inferior vena cava. Incidental finding at ultrasonography

A case of leiomyosarcoma of the inferior vena cava is presented. The tumor was incidentally found at ultrasonography of a patient who underwent a follow-up examination after surgery for carcinoma of the colon. The tumor was resected and the patient was alive and well one year postoperatively at which time repeat ultrasonography and inferior vena cavography showed no remaining tumor.