title: Thunderclap headache as initial manifestation of Vogt-Koyanagi-Harada disease.
abstract: A 59-year-old Asian woman suffered from a TCH followed by sudden, binocular blurred vision, mimicking pituitary apoplexy. The diagnostic workup (including fluorescein angiography, MRI of the brain, and CSF analysis) showed severe optic disc swelling and dye leakage of multiple faint hyperfluorescent spots at retinal pigment epithelium level, diffuse pachymeningeal hypertrophy, and monocytic pleocytosis, respectively. VKH disease should be considered in the differential diagnosis of patients presenting with a TCH followed by sudden, bilateral decreased visual acuity.
authors.affiliation: Brain Research Institute, Yonsei University College of Medicine--Department of Neurosurgery, Seoul, Korea.
authors.forename: Jun Hyung
authors.initials: JH
authors.lastname: Cho
authors.forename: Jung Yong
authors.initials: JY
authors.lastname: Ahn
authors.forename: Suk Ho
authors.initials: SH
authors.lastname: Byeon
authors.forename: Ji Soon
authors.initials: JS
authors.lastname: Huh
mesh_terms: D001921:Brain / Q000473:pathology; D005260:Female; D005451:Fluorescein Angiography; D051270:Headache Disorders, Primary / Q000150:complications* / Q000628:therapy; D006801:Humans; D008279:Magnetic Resonance Imaging; D008875:Middle Aged; D014607:Uveomeningoencephalitic Syndrome / Q000175:diagnosis* / Q000209:etiology*