Tectal glioblastoma.

Brain stem gliomas are a heterogeneous group of neoplasms arising mostly in paediatric patients. Tectal plate gliomas represent a particular type of brain stem tumours usually with a benign, indolent clinical course, presenting with signs of raised intracranial hypertension due to supra-tentorialhydrocephalous caused by aqueductal stenosis. Seldom high-grade lesions arise in this location with tremendous therapeutic implications.