title: 56-year-old woman with positional headache.
authors.affiliation: Mayo School of Graduate Medical Education, Mayo Clinic Arizona, Scottsdale, AZ, USA.
authors.forename: Allison M
authors.initials: AM
authors.lastname: Cullan
authors.forename: Michael L
authors.initials: ML
authors.lastname: Grover
mesh_terms: D017217:Blood Patch, Epidural; D001921:Brain / Q000000981:diagnostic imaging / Q000473:pathology*; D017675:CREST Syndrome / Q000150:complications; D065634:Cerebrospinal Fluid Leak; D002559:Cerebrospinal Fluid Rhinorrhea / Q000150:complications / Q000175:diagnosis / Q000473:pathology; D003937:Diagnosis, Differential; D005260:Female; D006261:Headache / Q000209:etiology* / Q000473:pathology; D006408:Hematoma, Subdural / Q000209:etiology; D006801:Humans; D019585:Intracranial Hypotension / Q000150:complications / Q000175:diagnosis* / Q000209:etiology / Q000473:pathology / Q000628:therapy; D008279:Magnetic Resonance Imaging; D008875:Middle Aged; D009325:Nausea / Q000209:etiology; D010147:Pain Measurement; D011187:Posture; D012720:Severity of Illness Index; D014057:Tomography, X-Ray Computed; D014717:Vertigo / Q000209:etiology; D014839:Vomiting / Q000209:etiology