Kyste neurentérique de la fosse postérieure. À propos d’un cas, revue de la littérature

• Published in: Neuro-chirurgie 2009-02, Vol.55 (1), p.45-52
• Main Authors: Scarone, P, Boissonnet, H, Heran, F, Gray, F, Robert, G
• Format: Article
• Language: fre
• Subjects: Chirurgie (generalites). Transplantations, greffes d'organes et de tissus. Pathologie des greffons; Chirurgie du système nerveux; Endodermal cyst; Enterogenous cyst; Kystes de la fosse postérieure; Kystes entéroïdes; Kystes neurentériques; Neurenteric cyst; Neurosurgery; Posterior fossa epithelial cyst; Sciences biologiques et medicales; Sciences medicales; Surgery
• ISSN: 0028-3770; 1773-0619
• DOI: 10.1016/j.neuchi.2008.03.006

Abstract Intracranial neurenteric cysts are rare entities. The term is currently used to describe epithelial cysts that are lined with a presumed endodermal-derived epithelium and are mostly located in the posterior fossa. Preoperative diagnosis is often difficult because of their clinical presentation, which may resemble a subarachnoid hemorrhage, and the radiological aspect, which can mimic vascular pathologies. We describe a posterior fossa neurenteric cyst in a 27-year-old woman, who presented with sudden headache as the only symptom and who was addressed to our hospital for subarachnoid hemorrhage. Diagnostic angiography was negative and MRI revealed a prepontine cystic lesion. The patient underwent a posterolateral approach on the right side, with subtotal resection of the lesion. We discuss the embryologic, diagnostic and therapeutic aspects of these cysts and review the literature.