title: Clinical reasoning: a 25-year-old man with headaches and collapse.
authors.affiliation: Department of Neurology, Beth Israel Deaconess Medical Center, Boston, MA, USA. ssyed@bidmc.harvard.edu
authors.forename: Sana
authors.initials: S
authors.lastname: Syed
authors.forename: Andrew J
authors.initials: AJ
authors.lastname: Westwood
mesh_terms: D000328:Adult; D001932:Brain Neoplasms / Q000150:complications / Q000175:diagnosis / Q000556:secondary; D002822:Choriocarcinoma / Q000150:complications / Q000175:diagnosis*; D003937:Diagnosis, Differential; D006261:Headache / Q000175:diagnosis* / Q000209:etiology; D006801:Humans; D008175:Lung Neoplasms / Q000150:complications / Q000175:diagnosis / Q000556:secondary; D008297:Male; D013575:Syncope / Q000175:diagnosis* / Q000209:etiology; D013736:Testicular Neoplasms / Q000150:complications / Q000175:diagnosis*