What are the histologic findings characteristic of a symptomatic plica?

Updated: Apr 20, 2020
  • Author: Tracy Lee Bigelow, DO; Chief Editor: Thomas M DeBerardino, MD  more...
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The histology of a symptomatic plica is typically that of synovial tissue (type A macrophagelike cells and type B fibroblastlike cells) immersed in an inflammatory reaction. [36] In other instances, the histology may show dense fibrotic tissue that only secondarily impinges upon articular surfaces to produce pain. Kasim and Fulkerson found fibrosis, vascular proliferation, and small nerves with deceased myelin (neuromata) on histologic analysis of specimens from their plica patients. [26]

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