Figure 4From: Advanced therapeutic strategy for radiation-induced osteosarcoma in the skull base: a case report and reviewAfter chemotherapy and cyber-knife treatment. A. Tumor regrowth is noted after discontinuation of ICE chemotherapy on MRI. B. The cavernous sinus portion of the tumor is noted after the third tumor resection. C. No obvious tumor recurrence is identified seven months after cyber-knife radiation.Back to article page