The popliteal artery aneurysm (AAP) is localized and irreversible walls of the popliteal artery dilation. It is rare pathology is the second most common location of true aneurysms after aortic, and the first location within the peripheral aneurysms. It is characterized by affecting mainly men at an average age of 65, whose manifestations are mainly ischemic, finishing lower limb amputation in a frequency ranging as appropriate between 7 and 20 percent. Our goal is to make the presentation of a case of AAP with subacute arterial ischemia, along with a literature review of the topic. the case of a 63 year old who consulted for lower limb pain 96 hours of evolution, with absence of pulses is presented a diagnosis of advanced subacute ischemia was performed resvascularizable not in the context of a clinically unstable patient. emergency amputation is decided. In dissecting the presence of PSA objective. The AAP have an incidence of 0.1 to 1%, have variable clinical. Arteriography is the gold standard for diagnosis. The treatment of choice is surgical, presenting new therapeutic options. The anatomical variations of the branches of the PA are variable to consider. Aneurysms are most commonly associated with contralateral popliteal (57.1%). We conclude that our conduct was appropriate considering the state of the patient.