Figure 2
From: Thirty-year clinical experience in gamma knife radiosurgery for trigeminal schwannomas

Illustrative case showing a gradual decrease in tumor size after GKRS (12 Gy, 50% isodose line, 6.3 cm3). A 43-year-old male improved facial hypesthesia as well as radiographic finding 9 years after GKRS. Initial MRI showed the tumor occupied Meckel’s cave and prepontine cistern, and compressed brainstem. It was gradually decreased, and it was completely diminished at 9 years post-GKRS. GKRS, gamma knife radiosurgery.