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Cerebrospinal fluid analysis revealed a mild leucocytosis and mildly elevated protein content. The patient was treated with a 5\u2005week course of penicillin. Three months after starting treatment, his right visual acuity had improved to 8\/10 and his right optic disc swelling had resolved.<\/jats:p>","DOI":"10.1136\/bcr-2013-008891","type":"journal-article","created":{"date-parts":[[2013,7,10]],"date-time":"2013-07-10T03:04:30Z","timestamp":1373425470000},"page":"bcr2013008891","source":"Crossref","is-referenced-by-count":3,"title":["Unilateral swollen optic disc: do not forget neurosyphilis"],"prefix":"10.1136","volume":"2013","author":[{"given":"L\u00e9nea","family":"Porto","sequence":"first","affiliation":[{"name":"Department of Internal Medicine 1, Centro Hospitalar Tondela-Viseu, Viseu, Portugal"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Joana","family":"Capelo","sequence":"additional","affiliation":[{"name":"Department of Internal Medicine 1, Centro Hospitalar Tondela-Viseu, Viseu, Portugal"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Adelino","family":"Carragoso","sequence":"additional","affiliation":[{"name":"Department of Internal Medicine 2, Centro Hospitalar Tondela-Viseu, Viseu, Portugal"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"239","published-online":{"date-parts":[[2013,7,9]]},"reference":[{"key":"2025082622553688000_2013.jul08_2.bcr2013008891.1","doi-asserted-by":"crossref","unstructured":"Agarwal PC Gupta S Thakur A . 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