Fig. 4

A 4-year-old male patient complaining of vomiting. Axial T1 (a), axial T2 (b), axial FLAIR (c), coronal T1 (d), sagittal T1 (e)—posterior fossa midline SOL measured 45 × 40 × 40 mm at its AP, width, and CC diameters originating from the superior medullary valum and encroaching upon the 4th ventricular cavity with subsequent supratentorial hydrocephalic changes, hypointense to CSF on FLAIR, and exhibits inhomogeneous enhancement. Axial DWI (f), Axial ADC (g)—the lesion showed restricted diffusion, ADC ratio—0.9, ADC values of the lesion (0.693, 0.702, 0.709) × mm²/s, average 0.702 × 10³ mm²/s, ADC value of the normal cerebellum—(0.742, 0.743, 0.749) × 10³ mm²/s, average 0.743 × 10³ mm²/s that are consistent with medulloblastoma confirmed by histopathology