{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,18]],"date-time":"2026-03-18T21:03:56Z","timestamp":1773867836639,"version":"3.50.1"},"reference-count":30,"publisher":"Frontiers Media SA","license":[{"start":{"date-parts":[[2021,6,10]],"date-time":"2021-06-10T00:00:00Z","timestamp":1623283200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["frontiersin.org"],"crossmark-restriction":true},"short-container-title":["Front. Psychiatry"],"abstract":"<jats:p><jats:bold>Background:<\/jats:bold> Erotomania, also known as de Clerambault's syndrome, is characterized by the delusion that a person has fallen in love with the patient. It occasionally appears secondary to psychiatric disorders and organic brain diseases. However, there have been no reports on cases secondary to dementia with Lewy bodies (DLB).<\/jats:p><jats:p><jats:bold>Case Presentation:<\/jats:bold> The patient was an 83-year-old woman who lived alone. Mild cognitive impairment appeared at the age of 82 years. Soon after, she had the delusional conviction that her family doctor was in love with her. Her symptoms, such as gradually progressive cognitive impairment, cognitive fluctuations, and parkinsonism, indicated DLB. She was treated with a small dose of antipsychotic agents.<\/jats:p><jats:p><jats:bold>Conclusions:<\/jats:bold> This case report suggests the possibility of de Clerambault's syndrome during the early stages of DLB. Further investigations are required to clarify the mechanism and treatment of de Clerambault's syndrome in patients with DLB.<\/jats:p>","DOI":"10.3389\/fpsyt.2021.665868","type":"journal-article","created":{"date-parts":[[2021,6,10]],"date-time":"2021-06-10T06:51:13Z","timestamp":1623307873000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":4,"title":["Case Report: De Clerambault's Syndrome in Dementia With Lewy Bodies"],"prefix":"10.3389","volume":"12","author":[{"given":"Takashi","family":"Suehiro","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yuto","family":"Satake","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mamoru","family":"Hashimoto","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Manabu","family":"Ikeda","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1965","published-online":{"date-parts":[[2021,6,10]]},"reference":[{"key":"B1","doi-asserted-by":"publisher","first-page":"625","DOI":"10.1176\/ajp.147.5.625","article-title":"Diagnosis and clinical course of erotomanic and other delusional patients","volume":"147","author":"Rudden","year":"1995","journal-title":"Am J Psychiatry"},{"key":"B2","doi-asserted-by":"publisher","first-page":"1092","DOI":"10.1176\/ajp.147.8.1092a","article-title":"Erotomania and senile dementia","volume":"147","author":"Carrier","year":"1987","journal-title":"Am J Psychiatry"},{"key":"B3","doi-asserted-by":"crossref","DOI":"10.1017\/CBO9780511544095","volume-title":"Delusional Disorder \u2013 Paranoia and Related Illness","author":"Munro","year":"1999"},{"key":"B4","doi-asserted-by":"publisher","first-page":"65","DOI":"10.1111\/j.1600-0447.1990.tb01357.x","article-title":"Primary and secondary erotomania: clinical characteristics and follow-up","volume":"82","author":"Gillet","year":"1990","journal-title":"Acta Psychiatr Scand"},{"key":"B5","doi-asserted-by":"publisher","first-page":"32","DOI":"10.1111\/ggi.12105","article-title":"Understanding delusion in dementia: a review","volume":"14","author":"Cipriani","year":"2014","journal-title":"Geriatr Gerontol Int."},{"key":"B6","doi-asserted-by":"publisher","first-page":"232","DOI":"10.1177\/0891988703258323","article-title":"Erotomania variants in dementia","volume":"16","author":"Br\u00fcne","year":"2003","journal-title":"J Geriatr Psychiatry Neurol."},{"key":"B7","doi-asserted-by":"publisher","first-page":"301","DOI":"10.1192\/bjp.134.3.301","article-title":"Morbid jealousy featuring as obsessive\u2013compulsive neurosis: treatment by behavioural psychotherapy","volume":"134","author":"Cobb","year":"1979","journal-title":"Br J Psychiatry."},{"key":"B8","first-page":"23","article-title":"De Cl\u00e9rambault's syndrome in multi-infarct dementia","volume":"22","author":"Heinik","year":"1991","journal-title":"Psychiatr Fenn."},{"key":"B9","doi-asserted-by":"publisher","first-page":"193","DOI":"10.1155\/2007\/274156","article-title":"De Clerambault's syndrome (erotomania) as a presenting feature of fronto-temporal dementia and motor neuron disease (FTD-MND)","volume":"18","author":"Olojugba","year":"2007","journal-title":"Behav Neurol."},{"key":"B10","doi-asserted-by":"publisher","first-page":"673","DOI":"10.1017\/S0033291713000494","article-title":"The prevalence and incidence of dementia with Lewy bodies: a systematic review of population and clinical studies","volume":"44","author":"Vann Jones","year":"2014","journal-title":"Psychol Med."},{"key":"B11","doi-asserted-by":"publisher","first-page":"691","DOI":"10.4088\/JCP.14m09018","article-title":"Sakamoto S, Ikeda M. Clinical features of delusional jealousy in elderly patients with dementia","volume":"76","author":"Hashimoto","year":"2015","journal-title":"J Clin Psychiatry."},{"key":"B12","doi-asserted-by":"publisher","first-page":"88","DOI":"10.1212\/WNL.0000000000004058","article-title":"Diagnosis and management of dementia with Lewy bodies: fourth consensus report of the DLB Consortium","volume":"89","author":"McKeith","year":"2017","journal-title":"Neurology."},{"key":"B13","first-page":"311","article-title":"Les psychoses passionnelles [Psychoses of passion]","volume-title":"Oewve Pshiatrique","author":"de Cl\u00e9rambault","year":"1942"},{"key":"B14","doi-asserted-by":"publisher","first-page":"400","DOI":"10.1192\/bjp.151.3.400","article-title":"Erotomania and senile dementia of Alzheimer type","volume":"151","author":"Drevets","year":"1987","journal-title":"Br J Psychiatry"},{"key":"B15","doi-asserted-by":"publisher","first-page":"743","DOI":"10.1212\/WNL.0000000000009323","article-title":"Research criteria for the diagnosis of prodromal dementia with Lewy bodies","volume":"94","author":"McKeith","year":"2020","journal-title":"Neurology."},{"key":"B16","first-page":"81","article-title":"\u201cLes psychoses passionnelles\u201d reconsidered: a review of de Cl\u00e9rambault's cases and syndrome with respect to mood disorders","volume":"16","author":"Stephen","year":"1991","journal-title":"J Psychiatry Neurosci"},{"key":"B17","doi-asserted-by":"publisher","first-page":"385","DOI":"10.1080\/09540261.2020.1744536","article-title":"The de Cl\u00e9rambault syndrome: more than just a delusional disorder?","volume":"32","author":"Sampogna","year":"2020","journal-title":"Int Rev Psychiatry."},{"key":"B18","doi-asserted-by":"publisher","first-page":"557","DOI":"10.1093\/brain\/awp295","article-title":"Neural correlates of psychotic symptoms in dementia with Lewy bodies","volume":"133","author":"Nagahama","year":"2010","journal-title":"Brain"},{"key":"B19","doi-asserted-by":"publisher","first-page":"2274","DOI":"10.1016\/j.neubiorev.2012.08.001","article-title":"Origins of delusions in Alzheimer's disease","volume":"36","author":"Reeves","year":"2012","journal-title":"Neurosci Biobehav Rev"},{"key":"B20","doi-asserted-by":"publisher","first-page":"e0161092","DOI":"10.1371\/journal.pone.0161092","article-title":"Differences of behavioral and psychological symptoms of dementia in disease severity in four major dementias","volume":"11","author":"Kazui","year":"2016","journal-title":"PLoS ONE."},{"key":"B21","doi-asserted-by":"publisher","first-page":"781","DOI":"10.1016\/j.jalz.2015.06.1746","article-title":"Dementia with Lewy bodies manifested as delusional parasitosis (Ekbom's syndrome)","volume":"11","author":"Magierski","year":"2015","journal-title":"Alzheimers Dement"},{"key":"B22","doi-asserted-by":"publisher","first-page":"29","DOI":"10.1186\/s12991-019-0253-3","article-title":"Delusional parasitosis in dementia with Lewy bodies: a case report","volume":"18","author":"Ochiai","year":"2019","journal-title":"Ann Gen Psychiatry."},{"key":"B23","doi-asserted-by":"publisher","first-page":"78","DOI":"10.1186\/s12883-017-0842-1","article-title":"An unusual delusion of duplication in a patient affected by Dementia with Lewy bodies","volume":"17","author":"Solla","year":"2017","journal-title":"BMC Neurol."},{"key":"B24","doi-asserted-by":"publisher","first-page":"86","DOI":"10.1192\/bjp.157.1.86","article-title":"Psychiatric phenomena in Alzheimer's disease. IV: disorders of behaviour","volume":"157","author":"Burns","year":"1990","journal-title":"Brit J Psychol."},{"key":"B25","doi-asserted-by":"publisher","first-page":"407","DOI":"10.1111\/j.1532-5415.1983.tb03715.x","article-title":"Sexual incidents in an extended care unit for aged men","volume":"31","author":"Szasz","year":"1983","journal-title":"J Am Geriatr Soc."},{"key":"B26","doi-asserted-by":"publisher","first-page":"155","DOI":"10.1177\/0891988705277541","article-title":"Inappropriate sexual behaviors in dementia","volume":"18","author":"Black","year":"2005","journal-title":"J Geriatr Psychiatry Neurol."},{"key":"B27","doi-asserted-by":"publisher","first-page":"100280","DOI":"10.1016\/j.esxm.2020.10.008","article-title":"Sexual disorders and quality of life in Parkinson's disease","volume":"9","author":"Santa Rosa Malcher","year":"2021","journal-title":"Sex Med."},{"key":"B28","doi-asserted-by":"publisher","first-page":"244","DOI":"10.1159\/000381800","article-title":"Relationship between dementia severity and behavioral and psychological symptoms of dementia in dementia with Lewy bodies and Alzheimer's disease patients","volume":"5","author":"Hashimoto","year":"2015","journal-title":"Geriatr Cogn Dis Extra."},{"key":"B29","doi-asserted-by":"publisher","first-page":"74","DOI":"10.1034\/j.1600-0447.2000.102001074.x","article-title":"Delusion and desire: erotomania revisited","volume":"102","author":"Kelly","year":"2000","journal-title":"Acta Psychiatr Scand"},{"key":"B30","doi-asserted-by":"publisher","first-page":"266","DOI":"10.1345\/aph.19123","article-title":"de Clerambault syndrome successfully treated with olanzapine","volume":"34","author":"Alao","year":"2000","journal-title":"Ann Pharmacother."}],"container-title":["Frontiers in Psychiatry"],"original-title":[],"link":[{"URL":"https:\/\/www.frontiersin.org\/articles\/10.3389\/fpsyt.2021.665868\/full","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2021,6,10]],"date-time":"2021-06-10T06:51:17Z","timestamp":1623307877000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.frontiersin.org\/articles\/10.3389\/fpsyt.2021.665868\/full"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2021,6,10]]},"references-count":30,"alternative-id":["10.3389\/fpsyt.2021.665868"],"URL":"https:\/\/doi.org\/10.3389\/fpsyt.2021.665868","relation":{},"ISSN":["1664-0640"],"issn-type":[{"value":"1664-0640","type":"electronic"}],"subject":[],"published":{"date-parts":[[2021,6,10]]},"article-number":"665868"}}