title: Anterior ethmoidal artery aneurysm and intracerebral hemorrhage.
abstract: The association between the formation of intracranial aneurysms and situations of increased blood flow in certain areas of the brain is well accepted today. It has been seen in association with arteriovenous malformations of the brain, carotid occlusion, and Moyamoya disease. The occurrence of aneurysms in small arteries of the skull base, with the exception of the intracavernous carotid artery, however, is rare. We report a case of a 55-year-old woman who presented with an intracerebral hemorrhage caused by a ruptured anterior ethmoidal artery aneurysm. To the best of our knowledge, this is only the second case of documented intracranial bleeding from such a lesion.
authors.affiliation: Division of Neurosurgery, Benjamin Guimaraes Foundation/Hospital da Baleia, Belo Horizonte, Brazil. ldantejr@hotmail.com
authors.forename: L B
authors.initials: LB
authors.lastname: da Costa
authors.forename: T
authors.initials: T
authors.lastname: Valiante
authors.forename: K
authors.initials: K
authors.lastname: Terbrugge
authors.forename: M
authors.initials: M
authors.lastname: Tymianski
mesh_terms: D017542:Aneurysm, Ruptured / Q000175:diagnosis* / Q000601:surgery; D001157:Arterial Occlusive Diseases / Q000150:complications / Q000175:diagnosis; D002340:Carotid Artery Diseases / Q000150:complications / Q000175:diagnosis; D002342:Carotid Artery, External / Q000473:pathology; D002533:Cerebral Angiography; D002543:Cerebral Hemorrhage / Q000175:diagnosis* / Q000209:etiology / Q000601:surgery; D035262:Cranial Fossa, Anterior / Q000098:blood supply / Q000601:surgery; D005004:Ethmoid Bone / Q000098:blood supply* / Q000601:surgery; D005260:Female; D006801:Humans; D002532:Intracranial Aneurysm / Q000175:diagnosis* / Q000601:surgery; D018810:Magnetic Resonance Angiography; D008875:Middle Aged; D011183:Postoperative Complications / Q000175:diagnosis; D012039:Regional Blood Flow / Q000502:physiology; D014057:Tomography, X-Ray Computed