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Etiology

In adults, Baker's cysts usually arise from almost any form of knee arthritis and cartilage (particularly the meniscus) tear. Baker's cysts can be associated with Lyme disease. Baker's cysts in children do not point to underlying joint disease. Baker's cysts arise between the tendons of the medial head of the gastrocnemius and the semimembranosus muscles. They are posterior to the medial femoral condyle. Read full entry

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