Table 1.

Patient characteristics.

Age/sex	Clinical presentation	Initial diagnosis	Time from onset to diagnosis	MRI findings	EEG findings	CSF 14-3-3	Autopsy
82/F	Memory impairment, aphasia, and depression	Alzheimer’s dementia	7 weeks	Small vessel disease	Generalized slowing	Positive	Positive
54/F	Confusion, ataxia, and falls	Hepatic encephalopathy	6 weeks	DWI and FLAIR basal ganglia hyperintensity	Periodic sharp wave complexes	Positive	Positive
58/F	Confusion, myoclonus, urinary incontinence, ataxia, and Parkinsonism	CJD	10 weeks	DWI and FLAIR hyperintensity in basal ganglia and pulvinar nuclei of the thalami	Periodic sharp wave complexes	Positive	Not done
67/M	Headache, blurred vision, ataxia, personality change, confusion, and myoclonus	Subacute encephalitis	9 weeks	DWI and FLAIR hyperintensity in basal ganglia and left frontal cortex	Periodic sharp wave complexes and slow background	Positive	Positive