We present the case of a 40-year-old woman presenting with bilateral asymmetric pedal swelling and abdominal lump. Investigations revealed a retroperitoneal necrotic mass encasing the large vessels along with deep venous thrombosis of bilateral femoral, popliteal, and saphenous veins. There were erosion of lumber vertebra and encroachment of paravertebral muscles. The extensive spread, vascular involvement, and necrosis on imaging pointed provisionally to a retroperitoneal sarcoma though we lost the patient before histological confirmation could be done.