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The popliteal fossa is to be examined bilaterally (on both sides) with the knee in a semi-flexed position. In some 60% of cases, the popliteal aneurysm presents as a palpable pulsatile mass at the level of the knee joint. Doppler ultrasonography is the preferred diagnostic method. CT angiography and MR angiography may also be employed. [2]
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 ...
A Baker's cyst, also known as a popliteal cyst, is a type of fluid collection behind the knee. [4] Often there are no symptoms. [2] If symptoms do occur these may include swelling and pain behind the knee, or knee stiffness. [1] If the cyst breaks open, pain may significantly increase with swelling of the calf. [1]
A true aneurysm is one that involves all three layers of the wall of an artery (intima, media and adventitia).True aneurysms include atherosclerotic, syphilitic, and congenital aneurysms, as well as ventricular aneurysms that follow transmural myocardial infarctions (aneurysms that involve all layers of the attenuated wall of the heart are also considered true aneurysms).
Grey Turner's sign refers to bruising of the flanks, the part of the body between the last rib and the top of the hip.The bruising appears as a blue discoloration, [1] and is a sign of retroperitoneal hemorrhage, or bleeding behind the peritoneum, which is a lining of the abdominal cavity.
Symptoms of a larger aneurysm that is steadily growing: Numbness on one side of the face or body. Pain above and behind the eye. Droopy eyelid or a dilated pupil. Double vision or other vision changes
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As well as initial symptoms, the accumulation of blood in the retroperitoneal space also compresses the femoral nerve. This may lead to weakness in extending the knee (with reduced patellar reflex ) and weakness in flexing the hip .
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