Heterogeneity in the psychiatric presentation of behavioural variant frontotemporal dementia (bvFTD).

OBJECTIVE:This article describes how the onset of bvFTD can be heralded by psychiatric symptoms. METHOD:Case reports are described with reference to the relevant literature review. RESULTS:Three patients were admitted with psychiatric symptoms, including depression, mania, psychosis and catatonia. Two had been previously diagnosed with a psychiatric disorder. All three were diagnosed with probable bvFTD. CONCLUSION:bvFTD is an important differential diagnosis to consider when patients present with atypical psychiatric symptoms.