Meningoencephaloceles are a frequent condition characterized by protrusion of meningeal and brain
tissue through a skull-base defect. Here, we report three cases of anterior meningoencephalocele
operated on one-stage procedure, a combined of transcranial and anterior approach, for invagination
removal of non-functional extracranial cerebral tissue with watertight closure of the dural defect;
written consent was taken. All cases were nasoethmoid, the congenital anomalies between the nasal
bones and the nasal cartilage.