Fig. 19
From: Tumor in the veins: an abdominal perspective with an emphasis on CT and MR imaging
A 65-year-old male with no significant past medical history presented with left lower extremity swelling and palpable groin mass. Coronally reformatted postcontrast CT image demonstrates heterogeneously enhancing solid mass extending along the left great saphenous vein. The mass extends cranially to the IVC via the femoral and iliac veins (arrows). Postsurgical histopathologic examination revealed leiomyosarcoma of the great saphenous vein