Fig. 5From: Multifocal pigmented villonodular synovitis coexisting in both the knee joint and the patella: a case report and literature reviewA cortical window of 1.5 × 1.5 cm was made over the anteromedial aspect of the patella (a). The tumor was brownish (a) and was scooped out. On the inner side of the cavity there is a sclerotic margin (b). Bone defect in the patella was filled with iliac crest bone graft (c)Back to article page