Fig. 1
Brain MRI, DWI and ADC mapping in patients with Diffuse midline glioma, H3 K27-altered. The lesion was located in the left thalamus and invaded the left ventricle. The internal signal of the tumor was uneven, T2WI showed high signal intensity (A), and T1WI showed low signal intensity (B). Multiple cysts can be seen in the part of the tumor invading the lateral ventricle (A, arrow). There was no edema around the lesion. After enhancement, the tumor showed inhomogeneous enhancement, with circular enhancement (C, arrow). The tumor tissue showed high signal intensity on DWI. The boundary of the tumor was unclear and grew infiltratively along the lateral ventricular wall (D, arrow). On ADC mapping, the lesion showed low signal (E). The ADC value of the tumor tissue (6.97 × 10− 4 mm2/s) was significantly lower than that of the contralateral side (8.47 × 10− 4 mm2/s)