Treatment of a large and symptomatic septum pellicidum cyst with endoscopic fenestration in a child—Case report and review of the literature

Abstract

Septum pellucidum cysts (SPCs) are seen in 10% of adults and s many as 82% of neonates and are considered a normal variant hat usually do not require any surgical treatment [1,2]. The expanion of SPCs was reported to be as low as 0.04% in a database of a arge number of magnetic resonance images (MRIs) [3]. Expandng SPCs may become symptomatic, showing signs and symptoms f raised intracranial pressure and mass effect. Almost 100 cases f symptomatic SPCs have been reported so far in the literature 4–24]. We report an unusually large SPC in a four-year-old boy with ymptoms of increased intracranial pressure, paraparesis, and gait isorder. The patient dramatically improved after endoscopic fenstration of the SPC into the lateral ventricles. In this case report, we ocus on the rarity and the clinical importance of this large sympomatic SPC, and we present a review of the relevant literature.