Medulloblastoma : A Common Pediatric Malignancy

Abstract

Medulloblastoma arises from the fourth ventricle’s roof of the brain. It is the most common primitive neuroectodermal tumor and is one of the most common pediatric malignancies. It’s male to female ratio is about two to one. Arising from the forth ventricle’s roof, causes tumor to develop hydrocephalus. Complete resection of the tumor in case of presence of the brainstem invasions is impossible. At the time of diagnosis, investigation for metastasis should be done since about ten to thirty-five percent of the cases have shown some degrees of metastasis once they have been diagnosed [1-4]. Medulloblastoma comprises about fifteen to twenty percent of the intracranial tumors in the pediatric groups. The first decade of life is the peak time for medulloblastoma appearance.