Though they have very different names, they have the same histology, and stain positive for
CD68,
HAM56, and
vimentin.[1] They are sometimes discussed together.[2][3][4]
References
^O'Connell JX, Fanburg JC, Rosenberg AE (July 1995). "Giant cell tumor of tendon sheath and pigmented villonodular synovitis: immunophenotype suggests a synovial cell origin". Human Pathology. 26 (7): 771–5.
doi:
10.1016/0046-8177(95)90226-0.
PMID7628850.
^Mackie GC (November 2003). "Pigmented villonodular synovitis and giant cell tumor of the tendon sheath: scintigraphic findings in 10 cases". Clinical Nuclear Medicine. 28 (11): 881–5.
doi:
10.1097/01.rlu.0000093083.77866.5c.
PMID14578700.
^Maheshwari AV, Muro-Cacho CA, Pitcher JD (October 2007). "Pigmented villonodular bursitis/diffuse giant cell tumor of the pes anserine bursa: a report of two cases and review of literature". Knee. 14 (5): 402–7.
doi:
10.1016/j.knee.2007.06.004.
PMID17669658.