Fig. 3

Typical imaging features of HOD. The abnormal signal in the region of ION located in ventrolateral medulla oblongata, with slightly high or high signal on T2WI and isointense or low signal on T1WI.

Typical imaging features of HOD. The abnormal signal in the region of ION located in ventrolateral medulla oblongata, with slightly high or high signal on T2WI and isointense or low signal on T1WI.