“…Evidence regarding radionecrosis of neural tissue in the central nervous system owing to damage to both nerve fibers and vasculature has been well documented (Lee, 1991;Martins, Johnston, Henry, Stoffel, & Di Chiro, 1977;Schultheiss, Stephens, & Maor, 1988) . More specifically, the main sites of lesions include the inferomedial temporal area, cervical spinal cord, pituitary gland, and cranial nerve (Chatani et al, 1986;Lee, Ng, & Ho, 1988;Woo, Lam, Yu, Lee, & Huang,1987).…”