When Parkisonism does not mean Parkinson’s

21 enero 2015

Lewy body dementia is often misdiagnosed as Parkinson’s disease. Lewy body dementia refers to two related diagnoses: Parkinson’s disease dementia (PDD) and dementia with Lewy bodies (DLB). Both PDD and DLB are considered Lewy body dementias. The difference is in the presentation of symptoms based on the «one-year rule.» With DLB, cognitive (thinking) symptoms that interfere with daily living appear before or within a year of movement problems resembling Parkinson’s disease. With PDD, cognitive symptoms do not typically develop until more than a year after movement problems begin.