Fig. 5
Brain MR images and ADC mapping in patients with glioma in the midline without H3 K27-altered. The tumor was located at the back of the pons and protruded into the fourth ventricle. The internal signal was uneven, T2WI showed a high signal (A), T1WI showed a low signal (B), and FLAIR showed an equal signal and cystic necrosis (C, arrow). There was no edema around the lesion. After enhancement, the tumor showed inhomogeneous and obvious enhancement (D). On ADC mapping, the lesion showed a high signal (E). The ADC value of the tumor tissue (9.65 × 10− 4 mm2/s) was higher than that of the surrounding normal brain tissue (8.95 × 10− 4 mm2/s)