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Blood serum analyses for syphilis were positive for rapid plasma reagin titres, the Venereal Disease Research Laboratories test and fluorescent treponemal antibody absorption. A lumbar puncture was performed and cerebrospinal fluid analysis resulted in the diagnosis of neurosyphilis. The patient completed a 2-week course of treatment with aqueous crystalline penicillin G and his symptoms subsequently improved. We suggest that neurosyphilis should always be included in the differential diagnosis of untreatable psychosis.<\/jats:p>","DOI":"10.1177\/147323000603400314","type":"journal-article","created":{"date-parts":[[2013,2,27]],"date-time":"2013-02-27T14:22:43Z","timestamp":1361974963000},"page":"335-337","source":"Crossref","is-referenced-by-count":11,"title":["Psychosis or Simply a New Manifestation of Neurosyphilis?"],"prefix":"10.1177","volume":"34","author":[{"given":"E","family":"Kararizou","sequence":"first","affiliation":[{"name":"Department of Neurology, Eginition Hospital, Athens National University, Athens, Greece"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"C","family":"Mitsonis","sequence":"additional","affiliation":[{"name":"Psychiatric Hospital, Athens, Greece"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"N","family":"Dimopoulos","sequence":"additional","affiliation":[{"name":"Psychiatric Hospital, Athens, Greece"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"K","family":"Gkiatas","sequence":"additional","affiliation":[{"name":"Neurological Clinic, Air Force Hospital, Athens, Greece"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"I","family":"Markou","sequence":"additional","affiliation":[{"name":"Neurological Clinic, Air Force Hospital, Athens, Greece"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"N","family":"Kalfakis","sequence":"additional","affiliation":[{"name":"Department of Neurology, Eginition Hospital, Athens National University, Athens, Greece"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[2006,5,1]]},"reference":[{"key":"bibr1-147323000603400314","doi-asserted-by":"publisher","DOI":"10.1136\/jnnp.2004.031922"},{"key":"bibr2-147323000603400314","doi-asserted-by":"publisher","DOI":"10.1007\/s11910-004-0065-x"},{"key":"bibr3-147323000603400314","doi-asserted-by":"crossref","first-page":"380","DOI":"10.33588\/rn.3504.2001422","volume":"35","author":"Conde-Sendin MA","year":"2002","journal-title":"Rev Neurol"},{"key":"bibr4-147323000603400314","doi-asserted-by":"publisher","DOI":"10.1212\/01.WNL.0000140254.61842.9C"},{"key":"bibr5-147323000603400314","doi-asserted-by":"publisher","DOI":"10.4088\/JCP.v65n0707"},{"key":"bibr6-147323000603400314","doi-asserted-by":"publisher","DOI":"10.1001\/jama.290.11.1510"},{"key":"bibr7-147323000603400314","first-page":"371","volume":"54","author":"Dupin N","year":"2004","journal-title":"Rev Prat"},{"key":"bibr8-147323000603400314","doi-asserted-by":"publisher","DOI":"10.1046\/j.1365-4362.2003.01737.x"},{"key":"bibr9-147323000603400314","doi-asserted-by":"publisher","DOI":"10.1007\/s11908-005-0060-7"},{"key":"bibr10-147323000603400314","doi-asserted-by":"publisher","DOI":"10.1258\/0956462011924065"},{"key":"bibr11-147323000603400314","doi-asserted-by":"publisher","DOI":"10.1136\/sti.2004.009415"},{"key":"bibr12-147323000603400314","first-page":"297","volume":"13","author":"Kohler CG","year":"2000","journal-title":"Neuropsychiatry Neuropsychol Behav Neurol"}],"container-title":["Journal of International Medical Research"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/147323000603400314","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/147323000603400314","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,4,29]],"date-time":"2026-04-29T10:40:43Z","timestamp":1777459243000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.sagepub.com\/doi\/10.1177\/147323000603400314"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2006,5]]},"references-count":12,"journal-issue":{"issue":"3","published-print":{"date-parts":[[2006,5]]}},"alternative-id":["10.1177\/147323000603400314"],"URL":"https:\/\/doi.org\/10.1177\/147323000603400314","relation":{},"ISSN":["0300-0605","1473-2300"],"issn-type":[{"value":"0300-0605","type":"print"},{"value":"1473-2300","type":"electronic"}],"subject":[],"published":{"date-parts":[[2006,5]]}}}