OBSTRUCTION TO VENOUS OUTFLOW FROM THE LEFT LOWER-EXTREMITY AFTER RENAL-TRANSPLANTATION

Three patients with acute massive swelling of the left lower extremity occurring soon after placement of a renal allograft in the left iliac fossa are described. In each patient, obstruction to venous outflow f rom the left lower limb was documented by venography. We surmise that venous obstruction resulted principally from a combination of extrinsi c compression of the left iliac vein by the right common iliac artery or by the allograft, and enhanced venous return from the allograft.