TY - JOUR PY - 2014// TI - Neurodegenerative disorder masquerading as psychosis in a forensic psychiatry setting JO - BMJ case reports A1 - Sommerlad, Andrew A1 - Lee, James A1 - Warren, Jason A1 - Price, Gary SP - ePub EP - ePub VL - 2014 IS - ePub N2 - A man presenting in his 50s, following conviction for a non-violent crime, to forensic psychiatric services, and then to a neuropsychiatry service with an unusual presentation of psychosis: second person auditory hallucinations, grandiose delusions and somatic delusions. Detailed collateral and family history revealed a background of progressive cognitive deficit and a family history of motor neuron disease. MRI of the brain revealed asymmetrical parieto-occipital volume loss and genetic testing demonstrated a pathogenic expansion of the chromosome 9 open reading frame 72 (C9ORF72) gene consistent with familial frontotemporal dementia caused by a hexanucleotide repeat expansion at C9ORF72, a recently discovered cause of familial frontotemporal dementia/motor neuron disease. This form of frontotemporal dementia should be considered as an important potential differential diagnosis for patients presenting with psychotic symptoms in later life, in whom a detailed family history and thorough cognitive assessment is essential.

Language: en

LA - en SN - 1757-790X UR - http://dx.doi.org/10.1136/bcr-2013-203458 ID - ref1 ER -