Fig. 2

Comparison of the sagittal MRI obtained at pre- and post-operation. a, b: Case 1. The preoperative MRI shows a giant hypothalamic tumor with no clear margin between the tumor and hypothalamic structure. The postoperative CT (after one day) shows the GTR of the tumor and hematocele in the lateral ventricles. c, d: Case 2. The preoperative MRI study shows the suprasellar tumor with solid and cystic portions. The postoperative MRI study obtained at one year after surgery shows that the gland and the stalk were preserved and visible. The tumor was radically resected. e, f: Case 3. The preoperative MRI shows the tumor located suprasellar, interpeduncular and prepontine cistern. The postoperative MRI (6 months) shows the radical resection of the hypothalamic glioma. g, h: Case 4. The preoperative and postoperative (one year) MRI shows the suprasellar hypothalamus glioma with the involvement of the third ventricle. The residual tumor remained stable after the subtotal resection. i, j: Case 5. The preoperative and postoperative (6 months) MRI shows the radical resection of the hypothalamic glioma