case_images: PMC10891309_01
case_images: Dose planning for Case 1. MRI (left, axial image; upper right, coronal; lower right; sagittal) on GammaPlan (Elekta, Tokyo) workstation. Radiosurgery shot placement was indicated in green circles, in each image.. MRI, magnetic resonance images
case_images: cureus-0016-00000052880-i01.jpg
case_images: PMC10891309_01_cureus-0016-00000052880-i01.jpg
case_images: FIG1
case_images: A maximum dose of 80 Gy was delivered at the retrogasserian portion (RGP) for GK-SRS in all four cases (Figures 1, 2, 3, 4).
case_images: Dose planning for Case 2
case_images: cureus-0016-00000052880-i02.jpg
case_images: PMC10891309_01_cureus-0016-00000052880-i02.jpg
case_images: FIG2
case_images: A maximum dose of 80 Gy was delivered at the retrogasserian portion (RGP) for GK-SRS in all four cases (Figures 1, 2, 3, 4).
case_images: Dose planning for Case 3. 3A: first GK-SRS; 3B: second GK-SRS. GK-SRS, Gamma Knife stereotactic radiosurgery
case_images: cureus-0016-00000052880-i03.jpg
case_images: PMC10891309_01_cureus-0016-00000052880-i03.jpg
case_images: FIG3
case_images: A maximum dose of 80 Gy was delivered at the retrogasserian portion (RGP) for GK-SRS in all four cases (Figures 1, 2, 3, 4). The second GK-SRS (Figure 3B) was again fully effective, which helped in complete pain disappearance approximately 10 days after the second GK-SRS.
case_images: Dose planning for Case 4
case_images: cureus-0016-00000052880-i04.jpg
case_images: PMC10891309_01_cureus-0016-00000052880-i04.jpg
case_images: FIG4
case_images: A maximum dose of 80 Gy was delivered at the retrogasserian portion (RGP) for GK-SRS in all four cases (Figures 1, 2, 3, 4).
case_images: Clinical treatment results of GK-SRS in four cases. *The patient died from old age 62 months after GK.. GK-SRS, Gamma Knife stereotactic radiosurgery; PR, partial response (partial pain relief); CR, complete response (complete pain disappearance)
case_images: cureus-0016-00000052880-i05.jpg
case_images: PMC10891309_01_cureus-0016-00000052880-i05.jpg
case_images: FIG5