Diffuse swelling of cerebral sulci and effacement of bilateral lateral ventricles.
Swollen of the cerebellum and brain stem with upward transtentorial and downward transforaminal herniations. The fourth ventricle and basal cisternae are effaced.
loss of intra-arterial flow voids signal and the MRA show absence of intracranial vessels bilaterally.
Abnormal signal intensity in cerebral and cerebellar hemispheres on DWI and ADC with MRS shows increase lactate/lipid peak, marked decrease of NAA.