Imaging Studies in Corticobasal Syndrome

Inclusion Criteria: * Age 18 years or older * Meet possible or probable CBS criteria Exclusion Criteria: * Subjects will be excluded if MRI is contraindicated (due to implanted device, severe claustrophobia, etc) * Subjects will be excluded if they have a concurrent illnesses or structural abnormality that could account for the CBS syndrome * Subjects will be excluded if they have a mutation in the progranulin gene * Subjects will excluded if they have received anti-Aβ therapy * Women who are pregnant will be excluded * Subjects will be excluded if they are actively taking daily anti-inflammatory medications (NSAIDs, corticosteriods, etc) * Subjects will be excluded if they have generalized inflammatory condition and treatment with immunosuppressive, corticoid/glucocorticoid, steroidal or non-steroidal anti-inflammatory medication within 2 weeks of scanning