A Baker's cyst is swelling in the popliteal area of the knee caused by fluid. When the excess knee joint fluid is compressed between the bones of the knee, it becomes trapped and separated from the joint to form a fluid-filled sac.Baker cyst's are not uncommon and can be caused by any swelling. The most common cause is arthritis.
Baker cyst's may cause not symptoms or just cause knee pain or tightness behind the knee, especially when the knee is extended or flexed. Baker's cyst usually can be visible as a bulge behind the knee.
Test to confirm a Baker cyst can be ultrasound and MRI.
Treatment for Baker's cyst is removal of fluid along with cortisone injection. sometimes medicines are given for pain and inflammation.
For more information you can visit myweb.lsbu.ac.uk and www.ajronline.org
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