TY - JOUR AU - Balducci, Pierfrancesco Maria AU - Gobbicchi, Chiara AU - Moretti, Patrizia AU - Tortorella, Alfonso T1 - Delusional sharing: a history focus-on and case report of folie à deux PY - 2017 Y1 - 2017-07-01 DO - 10.1708/2737.27910 JO - Rivista di Psichiatria JA - Riv Psichiatr VL - 52 IS - 4 SP - 168 EP - 171 PB - Il Pensiero Scientifico Editore SN - 2038-2502 Y2 - 2024/03/29 UR - http://dx.doi.org/10.1708/2737.27910 N2 - SUMMARY. Folie à deux (FAD) is a clinical condition that was first described by Lasègue and Falret in 19th century. They reported a rare condition where two or more people shared delusional ideas from a person to another. Nowadays a trace of this historical diagnosis and its theoretical framework, could be found on ICD-10 where FAD is translated in “Shared Psychotic Disorder”. Given the lack of literature and a well-defined set of symptoms it is hard to detect the clinical limits of FAD. Furthermore, the complex of comorbidities could lead to a misdiagnosis. In this paper we report a peculiar case of FAD with an historical focus trying to give a wider point of view and tools to recognize this unconventional psychiatric diagnosis. ER -