Congenital tumors of the central nervous system

摘要: Congenital tumors of the central nervous system (CNS) are often arbitrarily divided into “definitely congenital” (present or producing symptoms at birth), “probably within first week life), and “possibly 6 months life). They represent less than 2% all childhood brain tumors. The clinical features newborns include an enlarged head circumference, associated hydrocephalus, asymmetric skull growth. At birth, a large tense fontanel is presenting sign in up to 85% patients. Neurological as initial comparatively rare. prenatal diagnosis congenital CNS tumors, while based on ultrasonography, has significantly benefited from introduction magnetic resonance imaging studies. Teratomas constitute about one third half these most common neonatal tumor. immature because primitive neural elements and, rarely, component mixed malignant germ cell Other astrocytomas, choroid plexus papilloma, neuroectodermal atypical teratoid/rhabdoid medulloblastomas. Less histologies craniopharyngiomas ependymomas. There strong predilection for supratentorial locations, different infants children. Differential diagnoses spontaneous intracranial hemorrhage that can occur presence coagulation factor deficiency underlying vascular malformations, especially giant heterotopia. prognosis patients with generally poor, usually massive size However, be resected successfully if they small favorably located. favorable outcomes achieved where aggressive surgical treatment leads disease-free survival.