Ependymal Cyst of Third Ventricle Presenting as Intermittent Ataxia in a 2 Year Old Child

Abstract

The purpose of this study is to present and document the rare and dynamic behavior of an ependymal cyst. We report 18 months old Caucasian girl who presented with multiple episodes of intermittent ataxia and vomiting with unremarkable neurological examination. Non contrast head CT was consistent with marginally dilated right lateral ventricle. MRI showed 1.7 × 1.5 × 1.1 cm cystic structure at the anterior aspect of the third ventricle at the level of the foramen of Monro. With right frontal endoscopic approach endoscopic ablation of the cyst was achieved. Histologic findings and the immunophenotype was consistent with a diagnosis of ependymal cyst. The patient made an excellent recovery after the procedure.