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A popliteal artery aneurysm (PAA) is a bulging of the popliteal artery. [1] A PAA is diagnosed when a focal dilation greater than 50% of the normal vessel diameter is found (the normal diameter of a popliteal artery is 0.7-1.1 cm). PAAs are the most common aneurysm of the peripheral vascular system, accounting
It is most easily palpated (felt) with the knee partially flexed. Diagnosis is confirmed by ultrasonography, although if needed and there is no suspicion of a popliteal artery aneurysm then aspiration of synovial fluid from the cyst may be undertaken with care. An MRI image can reveal presence of a Baker's cyst.
A popliteal aneurysm may be distinguished from other masses by palpable pulsations (thrills) and abnormal arterial sounds detectable with a stethoscope. Because the artery lies deep to the tibial nerve, an aneurysm may stretch the nerve or compress its blood supply (see vasa vasorum). Pain from such nerve compression is usually referred, in ...
Angiograms of a patient diagnosed with popliteal artery entrapment syndrome of the left lower extremity. Image A shows a neutral popliteal artery before provocative maneuvers. Images B and C show the obstruction (orange arrows) enhanced with provocative maneuvers of plantar flexion and dorsiflexion, respectively.
It travels on the medial side of the popliteal artery. [1] It is superficial to the popliteal artery. [2] As it ascends through the fossa, it crosses behind the popliteal artery so that it comes to lie on its lateral side. It passes through the adductor hiatus (the opening in the adductor magnus muscle) to become the femoral vein. [1] [3]
Arterial stiffness occurs as a consequence of biological aging, arteriosclerosis and genetic disorders, such as Marfan, Williams, and Ehlers-Danlos syndromes. [1] Inflammation plays a major role in arteriosclerosis and arterial stiffness. [ 2 ]
Femoropopliteal bypass surgery is mainly used to treat cases of femoral artery blockage that cause more severe symptoms that restrict completion of daily tasks such as peripheral artery disease and claudication, or cases that have not responded well to other treatment options . Before surgery is considered, adjustments are made to lifestyle ...
An arteriovenous malformation (AVM) is an abnormal connection between arteries and veins, bypassing the capillary system. Usually congenital, this vascular anomaly is widely known because of its occurrence in the central nervous system (usually as a cerebral AVM), but can appear anywhere in the body.