Phlegmasia cerulea dolens secondary to an aortoiliac aneurysm.

Phlegmasia cerulea dolens is an uncommon entity. We present a case of phlegmasia cerulea dolens secondary to an aortoiliac aneurysm that compressed the common iliac vein. Catheter-directed thrombolysis was not considered to be a suitable option, because the patient needed an urgent fasciotomy.