Bilateral popliteal artery aneurysms with rupture and pseudoaneurysm formation on the left.

The rupture of a popliteal artery aneurysm is very rare, and can lead to serious complications if untreated. Any reports of a huge pseudoaneurysm, following rupture of the popliteal artery aneurysm could not be found in a review of the literature. A pulsatile huge mass leading to a deep venous thrombosis, was observed in a 74 years old male patient who for 2 months had had a progressively swollen and painful left leg. On angiographic evaluation, the mass was found to be a pseudoaneurysm originating from a ruptured true aneurysm of the popliteal artery. There was also a small true aneurysm in the contralateral extremity at the same localization. Both the false, and true aneurysms were resected surgically and arterial continuity was established with a synthetic polytetrafluoroethylene graft.