title: Intrasellar rupture of a paraclinoid aneurysm with subarachnoid hemorrhage: usefulness of MR imaging in diagnosis.
abstract: Characterization of paraclinoid aneurysms may be difficult because of the complexity of anatomic structures involved, and differentiation between intradural and extradural lesions is crucial. We report a case of a patient with a unique presentation of a paraclinoid aneurysm with intrasellar hemorrhage in which the presence of intrasellar blood and the relationship of the paraclinoid aneurysmal neck and sac to the dural rings were elegantly demonstrated on MR imaging and were critical in choosing the target lesion for treatment.
authors.affiliation: Department of Neuroradiology, Hospital São Marcos, Braga, Portugal. manuelqr@portugalmail.pt
authors.forename: M
authors.initials: M
authors.lastname: Ribeiro
authors.forename: P
authors.initials: P
authors.lastname: Howard
authors.forename: R
authors.initials: R
authors.lastname: Willinsky
authors.forename: K
authors.initials: K
authors.lastname: ter Brugge
authors.forename: R
authors.initials: R
authors.lastname: Agid
authors.forename: L
authors.initials: L
authors.lastname: Thines
authors.forename: L
authors.initials: L
authors.lastname: da Costa
mesh_terms: D000784:Aortic Dissection / Q000175:diagnosis*; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008297:Male; D012422:Rupture, Spontaneous / Q000175:diagnosis; D012658:Sella Turcica / Q000473:pathology*; D013345:Subarachnoid Hemorrhage / Q000175:diagnosis*