PT - JOURNAL ARTICLE AU - Yalo, Bertrand AU - Pop, Raoul AU - Zinchenko, Ielyzaveta AU - Diaconu, Mihaela AU - Chibbaro, Salvatore AU - Manisor, Monica AU - Wolff, Valerie AU - Beaujeux, Remy TI - Republished: Aneurysmal wall imaging in a case of cortical superficial siderosis and multiple unruptured aneurysms AID - 10.1136/neurintsurg-2016-012680.rep DP - 2017 Jun 01 TA - Journal of NeuroInterventional Surgery PG - e21--e21 VI - 9 IP - 6 4099 - http://jnis.bmj.com/content/9/6/e21.short 4100 - http://jnis.bmj.com/content/9/6/e21.full SO - J NeuroIntervent Surg2017 Jun 01; 9 AB - 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.