Catheter-directed treatment of phlegmasia. (a) Acutely swollen, mottled, cyanotic leg in the setting of an extensive occlusive DVT. (b, c) Preintervention venograms demonstrate extensive thrombus along the length of the (b) femoral and (c) iliofemoral deep veins. (d, e) After thrombolysis, angioplasty, and stent deployment, the flow through these segments is markedly improved. (f) Appearance of the leg 10 days after treatment. (Case courtesy of Brooke Spencer, MD.)