. Author manuscript; available in PMC: 2019 Jan 1.

Published in final edited form as: Parkinsonism Relat Disord. 2017 Aug 1;46(Suppl 1):S30–S33. doi: 10.1016/j.parkreldis.2017.07.033

Table 1.

Parkinsonian disorders

Classification	Examples
Degenerative parkinsonism
α-Synuclein	Parkinson’s disease, multiple system atrophy
Tau	Progressive supranuclear palsy; corticobasal degeneration; Guam Parkinson dementia complex; chronic traumatic encephalopathy
TDP-43	Perry syndrome; frontotemporal lobar degeneration (FTLD-TDP)
Nonspecific	Genetic PD (PINK1, PRKN, POLG1, some forms of LRRK2)
Non-degenerative parkinsonism
Vascular	Vascular parkinsonism
Toxic	MPTP; manganese poisoning
Drug-induced	Antipsychotic medications
Infectious	Influenza virus (post-encephalitic parkinsonism)

Parkinsonian disorders classified by major etiologic factor