Fig 2.

Characteristic MR imaging features according to medulloblastoma molecular subgroups. A, In the top row, characteristic location of WNT tumors in the CP/CPA region is shown. B, In the second row, SHH tumors are predominantly located in the cerebellar hemispheres. C, In the third row, group 3 tumors are located in the midline/fourth ventricle and show enhancement and ill-defined features against the adjacent brain parenchyma. D, In the fourth row, group 4 tumors are also located in the midline fourth ventricle but tend to show minimal or no enhancement.