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Air Conditioning and Coolant
Conditions and Diseases
Skeletal System

What is the movable liquid sac on the side of my knee?


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Wiki User
September 05, 2007 12:38AM

Well, if it's relitivly small, maybe no bigger then a peanut, it's probably just a ball of fat. You could either wait for it to go away, or a doctor can surgically remove it. "IF" that's what it is, it isn't harmful and happens from time to time.