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Despite the absence of physical symptoms, investigations revealed a previously undetected adrenocorticotropic hormone-releasing small cell lung carcinoma that led to his death within months. This case highlights the complexity of distinguishing primary from secondary mania when it occurs after the peak incidence period of early adulthood. Undertaking a comprehensive medical workup is generally recommended.<\/jats:p>","DOI":"10.1136\/bcr-2019-233403","type":"journal-article","created":{"date-parts":[[2020,2,27]],"date-time":"2020-02-27T04:15:31Z","timestamp":1582776931000},"page":"e233403","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":6,"title":["Late-onset mania associated with corticosteroids and small cell lung carcinoma"],"prefix":"10.1136","volume":"13","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-7975-6104","authenticated-orcid":false,"given":"Samer","family":"El Hayek","sequence":"first","affiliation":[{"name":"Department of Psychiatry, American University of Beirut, Beirut, Lebanon"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Joseph","family":"El-Khoury","sequence":"additional","affiliation":[{"name":"Department of Psychiatry, American University of Beirut, Beirut, Lebanon"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"239","published-online":{"date-parts":[[2020,2,26]]},"reference":[{"key":"2025082801283564000_13.2.e233403.1","doi-asserted-by":"crossref","unstructured":"Sajatovic MK L . 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