Cognition and Lewy body disease.

INTRODUCTION We're assisting in last years to an important change in clinical manifestations of Parkinson disease. Nowadays motor symptoms have best treatments if we compare with those existing some decades ago, which in last term, permits other manifestations being the main disabilities in an advanced Parkinson disease. Among these disabilities cognitives are the most severe due to it's prevalence and devastating consecuences. CLINICAL CASE We present the clinical case of a 72 aged woman who complains of cognitive and depressive symptoms, probably compatible with a depressive disorder, but finally diagnosed with Lewy body disease despite these cognitive manifestations are most common in advanced disease. CONCLUSIONS We' re showing an interesting case of Lewy body disease due to it's incipient symptomatology in cognitive manifestations (which makes it interesting for psichiatric value), motor manifestations (interesting for neurological value) and organic manifestations as complementary tests demostrate. Finally, we justificate the usage of rivastigmine as the choice of treatment in these cases which onset is mainly composed by cognitive symptoms. Key words: Parkinson, Lewy Bodies, dementia, cognitive impairment, rivastigmine, dopamine.