pediatrics
Medulloblastoma
Introduction
Medulloblastomas are invasive and rapidly growing childhood central nervous system tumors that develop in the posterior fossa (containing the brain stem and cerebellum). Diagnosis is based on MRI and biopsy/tumor resection. Treatment is a combination of surgery, radiation therapy, and chemotherapy. Medulloblastoma is the most common malignant posterior fossa tumor in children and the second most common malignant cancer of all Overview of Central Nervous System Tumors in Children ( Etiologyof medulloblastoma is unknown in most patients, but medulloblastoma may occur with certain syndromes (eg, Gorlin syndrome, Turcot syndrome). 