Table 2 Differential diagnoses with negative MRI findings

DiagnosisNo. (total n = 58) (%)
Unclear diagnosis20 (34)
Alzheimer disease11 (19)
Other neurodegenerative diseases10 (17)
    Lewy body dementia2
    Shy-Drager syndrome1
    Huntington disease2
    Multiple system atrophy1
    Corticobasal degeneration1
    Olivopontocerebellar atrophy1
    Pick disease1
    Motor neuron disease1
Acute/chronic inflammatory diseases7 (12)
    Multiple sclerosis1
    Hashimoto encephalopathy2
    Encephalitis4
Vascular dementia4 (7)
    Subcortical arteriosclerotic encephalopathy3
    Binswanger disease1
Psychiatric diseases2 (3)
Metabolic diseases2 (2)
Gliomatosis cerebri1 (2)
B-cell lymphoma1 (2)