Edited by
Irene Litvan

2005

The “atypical parkinsonian disorders,” previously known as “Parkinson plus syndromes,” are characterized by a rapidly evolving parkinsonism that usually has a poor or transient response to dopaminergic therapy and often associates with one or more atypical features. These disorders may be difficult to accurately diagnose, but an early and correct diagnosis is relevant for both patients and physicians, since it allows for appropriate management and prognosis, which in turn, improves patients and families quality of life.