Fig. 2From: Surgical treatment of cavernous sinus meningioma with petrous bone invasion causing internal auditory canal stenosis and hearing impairment 7 years after gamma-knife radiosurgerya, b: Gamma-knife radiosurgery plans for the cavernous sinus meningioma. The targeted tumor is 110 × 102 × 109 mm and 14.7 mL in volume. The tumor was treated with median central and margin doses of 20 Gy and 12 Gy, respectivelyBack to article page