title: Giant arachnoid granulation mimicking dural sinus thrombosis in a boy with headache: MRI.
abstract: We report MRI and angiographic findings of an unusual giant arachnoid granulation in the left sigmoid sinus in a boy with headache. Its signal intensity was lower than that of cerebral cortex on T1-weighted images and higher on T2 weighting, mimicking dural sinus thrombosis.
authors.affiliation: Department of Radiology, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan, ROC.
authors.forename: S C
authors.initials: SC
authors.lastname: Chin
authors.forename: C Y
authors.initials: CY
authors.lastname: Chen
authors.forename: C C
authors.initials: CC
authors.lastname: Lee
authors.forename: F H
authors.initials: FH
authors.lastname: Chen
authors.forename: K W
authors.initials: KW
authors.lastname: Lee
authors.forename: H S
authors.initials: HS
authors.lastname: Hsiao
authors.forename: R A
authors.initials: RA
authors.lastname: Zimmerman
mesh_terms: D001099:Arachnoid / Q000473:pathology*; D002648:Child; D003937:Diagnosis, Differential; D006261:Headache / Q000209:etiology; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D012851:Sinus Thrombosis, Intracranial / Q000175:diagnosis*; D014057:Tomography, X-Ray Computed