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I have a lump behind my knee. When I press on it it hurts otherwise doesn't hurt. Any ideas what it is?


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replied April 14th, 2016
Vascular and Circulatory Disorders Answer A56694
hello and welcome

your concern is appreciated

A lump behind the knee can be baker cyst which can present as swelling behind the knee which is actually the accumulation of fluid in bursa between the gastrocnemius muscle.people may experience tightness swelling and pain in upper calf and is most appreciable when knee is bend or straighten all the way. the cuases for this cyst can be arthritis, infection, damaged cartliage or any other injury to the knee so treating the cause can make it go away but complication alo occur like the cyst may grow in size can extend to the calf muscles and may burst results in bruising on the ankle due to leaked fluid. joint xray MRI and u/s is done for diagnosing.the treatment includes treatment of the cause cortisone injections it can also be drained and surgery can also be done when all other treatment is not effective. symptomatic treatment temporarily includes physiotherapy and avoidance of activities that aggravate the knee joint and mediaction to redue pain like ipobrufen. other differential diagnosis are meniscal cyst, ganglionic cyst.

hope it helps
thanks.


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