Fig. 2
From: Pigmented villonodular synovitis in pediatric population: review of literature and a case report
Microscopic section of the synovial biopsy, Pigmented Villonodular Synovitis, a. Villous and nodular configuration. Note the hypertrophied synovium. (×4 and ×10, Hematoxylin-Eosin), b. Hypertrophied synovium (black arrows) and histiocytes, Hemosiderin-laden macrophages and osteoclast-like giant cells (blue arrowheads) are visible. (×40, Hematoxylin-Eosin), c. This section shows admixture of hemosiderin-laden and lipid-laden macrophages