Which histologic findings are characteristic of cystic lesions of the knee?

Updated: Nov 12, 2020
  • Author: David M Gonzalez, MD, FACS; Chief Editor: Thomas M DeBerardino, MD  more...
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The cysts are lined with an epithelium. Bursal sacs are lined with a membrane similar to synovium. A Baker cyst is the most common synovial cyst. Adventitial cysts do not have a true epithelial lining or synovial lining and usually have thickened walls. Many meniscal cysts have been shown to have a clear communication with the joint and appear to be lined with synovium.

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