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.

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