title: [Clinical study of the month: depressive pseudo-dementia].
abstract: We report the case of a man aged 62 suffering from a known type I bipolar disorder and referred by his attending psychiatrist because of a state of spatiotemporal disorientation, confusion and prostration evoking significant neurologic impairment. The interest of this case report is in the use of the 18-FDG PET-Scanner, which is increasingly widespread in clinical psychiatry, to support the differential diagnosis between a psycho-organic pathology like dementia or a functional psychiatric pathology like depressive pseudo-dementia (also named melancholic dementia), in which some patterns of dysfunction can now be identified by functional imaging.
authors.forename: A
authors.initials: A
authors.lastname: Schena
authors.forename: M
authors.initials: M
authors.lastname: Ansseau
authors.forename: J M
authors.initials: JM
authors.lastname: Triffaux
authors.forename: E
authors.initials: E
authors.lastname: Salmon
authors.forename: N
authors.initials: N
authors.lastname: Withofs
authors.forename: G
authors.initials: G
authors.lastname: Scantamburlo
mesh_terms: D001921:Brain / Q000000981:diagnostic imaging*; D003704:Dementia / Q000175:diagnosis; D003865:Major Depressive Disorder / Q000175:diagnosis*; D003937:Diagnosis, Differential; D005162:Factitious Disorders / Q000523:psychology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D049268:Positron-Emission Tomography