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.