title: Aneurysmal wall imaging in a case of cortical superficial siderosis and multiple unruptured aneurysms.
abstract: We report a case of interhemispheric and bifrontal cortical superficial siderosis in association with two intracranial aneurysms. The patient had no clinical history suggestive of aneurysm rupture, no feature of amyloid angiopathy or other apparent etiology for cortical siderosis. We performed high resolution brain MRI with dark blood T1 sequences before and after IV contrast injection. An anterior communicating aneurysm showed partial wall enhancement on the posterior wall whereas a left posterior communicating aneurysm did not. In the light of recent reports of the association of wall enhancement with unstable aneurysms, we considered wall enhancement to be a marker of inflammation and remodeling of the aneurysm wall, resulting in chronic hemorrhagic suffusion in the subarachnoid spaces. To our knowledge, this is the first report offering proof for a possible link between apparently unruptured aneurysms and cortical siderosis.
authors.affiliation: Department of Vascular Neurology, Hopitaux universitaires de Strasbourg, Strasbourg, Alsace, France.
authors.forename: Bertrand
authors.initials: B
authors.lastname: Yalo
authors.affiliation: Department of Interventional Radiology, Institut Hospitalo-Universitaire, Strasbourg, France.|Department of Interventional Neuroradiology, Strasbourg University Hospitals, Strasbourg, France.|Department of Neurology, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania.
authors.forename: Raoul
authors.initials: R
authors.lastname: Pop
authors.affiliation: Department of Vascular Neurology, Hopitaux universitaires de Strasbourg, Strasbourg, Alsace, France.
authors.forename: Ielyzaveta
authors.initials: I
authors.lastname: Zinchenko
authors.affiliation: Department of Vascular Neurology, Hopitaux universitaires de Strasbourg, Strasbourg, Alsace, France.
authors.forename: Mihaela
authors.initials: M
authors.lastname: Diaconu
authors.affiliation: Department of Neurosurgery, Strasbourg University Hospitals, Strasbourg, France.
authors.forename: Salvatore
authors.initials: S
authors.lastname: Chibbaro
authors.affiliation: Department of Interventional Radiology, Institut Hospitalo-Universitaire, Strasbourg, France.|Department of Interventional Neuroradiology, Strasbourg University Hospitals, Strasbourg, France.
authors.forename: Monica
authors.initials: M
authors.lastname: Manisor
authors.affiliation: Department of Vascular Neurology, Hopitaux universitaires de Strasbourg, Strasbourg, Alsace, France.
authors.forename: Valerie
authors.initials: V
authors.lastname: Wolff
authors.affiliation: Department of Interventional Radiology, Institut Hospitalo-Universitaire, Strasbourg, France.|Department of Interventional Neuroradiology, Strasbourg University Hospitals, Strasbourg, France.
authors.forename: Remy
authors.initials: R
authors.lastname: Beaujeux
mesh_terms: D000368:Aged; D015901:Angiography, Digital Subtraction; D003287:Contrast Media; D006801:Humans; D002532:Intracranial Aneurysm / Q000150:complications* / Q000000981:diagnostic imaging*; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008297:Male; D008536:Meglumine; D059906:Neuroimaging; D009942:Organometallic Compounds; D012806:Siderosis / Q000150:complications*
chemical_list: D003287:Contrast Media; D009942:Organometallic Compounds; D008536:Meglumine; C072417:gadoterate meglumine
keywords: Aneurysm; MRI; Vessel Wall