Identifying mercury heavy-metal poisoning masquerading as Dementia and Parkinson’s disease – recognizing neuropsychiatric manifestations and dietary contributors.
Assessing older adults presenting with cognitive decline, depression or other neuropsychiatric symptoms can be challenging because the underlying causes can be multifactorial. This article describes neuropsychiatric manifestations similar to those of Parkinson’s disease in an elderly man who upon examination was suspected of having an elevated blood mercury level through dietary exposure, a suspicion later confirmed by blood tests. We outline suggestions for comprehensive history taking to identify potential sources of environmental exposure and provide resources to help limit and prevent consumption of foods that can contain heavy metals.