Figure 3From: Post-radiation dedifferentiation of meningioma into osteosarcoma. a. Higher magnification of osteosarcoma with numerous mitotic figures and ostoclastic giant cells. b. Osteosarcoma with areas of chondroblastic differentiation in the recurrence after 8 months (a and b- H&E stain, a- X20, b- X40).Back to article page