In most instances, the primary cause of the Baker’s cyst is not the popliteal fossa or bursa at all but rather inflammation elsewhere in the knees such as that due to a meniscus tear or arthritis.

Popliteal artery entrapment syndrome (PAES) is an anomaly resulting in symptomatic extrinsic compression of the popliteal artery by the surrounding musculotendinous structures; most frequently the ...