title: Nummular headache associated to arachnoid cysts.
authors.affiliation: Neurology Department, HGU Gregorio Marañón, Madrid, Spain. amparo.guillem@telefonica.net
authors.forename: Amparo
authors.initials: A
authors.lastname: Guillem
authors.forename: Francisco J
authors.initials: FJ
authors.lastname: Barriga
authors.forename: Santiago
authors.initials: S
authors.lastname: Giménez-Roldán
mesh_terms: D000328:Adult; D016080:Arachnoid Cysts / Q000150:complications*; D005260:Female; D006261:Headache / Q000209:etiology* / Q000473:pathology; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000379:methods; D008875:Middle Aged