There are a number of conditions that present some of the signs and symptoms of Parkinson’s, but that do not respond in the same way to typical treatments. These diseases are referred to as Atypical Parkinsonisms, and are most likely to affect people in their 50s and 60s, although this can vary. 

Many other conditions involving movement -based issues mimic Parkinson’s Disease. A patient therefore may show no signs of developing PD but will experience very similar symptoms. These conditions can be particularly challenging for non-specialists and can sometimes lead to misdiagnosis.