Journal of Medical Cases, ISSN 1923-4155 print, 1923-4163 online, Open Access
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Case Report

Volume 11, Number 7, July 2020, pages 201-203

Pigmented Villonodular Synovitis Around the Elbow Joint That Required Upper Arm Amputation


Figure 1.
Figure 1. Histopathological findings of a surgically resected specimen on hematoxylin and eosin (H&E) staining (× 200). It shows invasive proliferation to the synovial membrane, osteoclast-like giant cells (arrow), proliferation of round cells (arrowhead), and hemosiderin accumulation between cells.