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Baker's cyst

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Hernia-like cysts in synovial membranes, especially of the knee joints, produced by synovial fluid escaping from a joint through a natural channel or thorugh a hernial opening in the synovial membrane. Limited extension with mild aching and stiffness of knee. Occur at any age, but more frequent in males 15 to 30 years of age. Aetiology unknown. Inheritance reported in a family.


  • W. M. Baker:
    The formation of abnormal synovial cysts in connection with the joints. II.
    St.Bartholomew’s Hospital Reports, London, 1885, 21: 177-190.

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