Image caption, The popliteal fossa is the hollow space at the back of the leg, behind the knee The popliteal fossa is the diamond-shaped space you find at the back of your knee, formed between the ...
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.