<prompt> What is a Bakers Cyst -Gluteal AbscessCyst on the posterior aspect of the thighCyst over the popliteal fossaSwelling of the bursa of semiteninosus and gracilis  <response>: Ans. is c i.e., Cyst over the popliteal fossa Bakers Cvsto A Bakers cyst, also known as a popliteal cyst, is a benign swelling of the semimembranosus or more rarely some othersynovial bursa found behind the knee joint.o Diagnosis is by examination. A Bakers cyst is easier to see from behind with the patient standing with knees fully extended. 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 Bakers cysto Bakers cysts usually require no treatment unless they are symptomatico Surgical excision is reserved for cysts that cause a great amount of discomfort to the patient. 