Figure 1

Neuroimaging of the NPH suspected cases. Head CT (A) and FLAIR sequences of brain MRI (B-D) for cases 1–4 (A-D) showed mild to moderate ventriculomegaly (upper row), with relatively mild or absent (Case 3) associated parenchymal atrophy as judged by the apical axial cuts (middle row). Some degree of midbrain atrophy is appreciable in all cases, including the one ultimately diagnosed as DLB on pathology (C) despite a clinical picture that suggested a rapidly progressive form of PSP. Leukoencephalomalacia in the right cerebellar hemisphere and left parasagittal frontal lobe was due to remote stroke in Case 4.