Course: 30 Supervisor: Professor Hoang Duc Kiet, MD, PhD and Associate Professor Ninh Thi Ung, MD, PhD. Institution: Hanoi Medical University New conclusions of the thesis: Medulloblastoma: Usually located in the midline (85.4%), hypointensity on T1WI (93.7%), iso or hyperintensity on T2WI (70.8%), hyperintensity on DWI (54, 2%), metastatic meninges (35.4%).