Fig. 2

a: Enhanced brain CT image of case 2, showing diffuse swelling of bilateral cerebral hemispheres, shallower sulci, decreased cortical density, and linear enhancement in bilateral temporal lobe sulci; b, c, and d are brain MR DWI sequences of case 2, showing symmetrical diffuse hyperintensities in both cerebral hemispheres, mainly involving the cortex. The patient experienced a rapid deterioration of condition shortly after admission, manifesting cortical stiffness within a short timeframe and developing central diabetes insipidus. Unfortunately, the patient succumbed to multiple organ failure in the end