Fig. 3From: Clinical outcomes of endoscopic synovectomy with adjuvant radiotherapy of pigmented villonodular synovitis of the hip: a case series of single centerdifferent histopathological features of PVNS. A. Large amount of villous synovial hyperplasia (HE× 20). B. Homogeneous monocytes associated with scattered multinucleated giant cells (HE× 40). C. Lots of hemosiderin and foam cells (HE× 20). D. Synovial villous hyperplasia and abundant hemosiderin deposition (HE× 20)Back to article page