Endovascular management of spontaneous intracranial pseudoaneurysms in a pediatric patient with Noonan syndrome. A mere coincidence or a possible association with the disorder?

Abstract

Noonan syndrome (NS) is a rare autosomal-dominant neurodevelopmental disorder, which typically develops abnormalities of the craniofacial development and congenital heart defects. A number of cerebrovascular anomalies have also been occasionally described previously in the setting of NS. The assumption that NS can induce the formation of intracranial pseudoaneurysm (IAP) or the rupture of an already existing abnormality is yet unknown. We encountered a rare case of a 9-year-old NS patient with two IAPs presenting with episodes of intracerebral hemorrhage that were successfully managed with endovascular embolization. This case represents a possible association between NS and the presence of ruptured IAPs.