Which cytopathologic findings are characteristic of giant cell tumor of the tendon sheath?

Updated: Aug 06, 2019
  • Author: James R Verheyden, MD; Chief Editor: Harris Gellman, MD  more...
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The predominant cell type is the mononuclear cell. These round-to-polygonal cells are found alone or in papillary clusters and have eccentrically located nuclei that lack pleomorphism. Varying amounts of refractile golden-brown crystals of hemosiderin are characteristically found within the histiocytes. [37, 38]

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