Medulloblastoma (MB) adalah sejenis ketumbuhan otak pejal (solid tumor) yang selalu dihidapi oleh kanak-kanak. Ia mewakili sebanyak 7-8% daripada jumlah keseluruhan ketumbuhan otak dan mewakili 30% ketumbuhan otak kanak-kanak.
Dr Nor Faizal's is a paediatric neurosurgeon who cares for children with nervous system tumours, developmental deformities as well as spinal cord tumours. He has dedicated his neurosurgical practice to paediatric neurosurgery since 2015.
He also has an interest in neurosurgical pain management after he studied deep brain stimulation for chronic pain in Oxford University. He completed a fellowship in interventional pain to provide minimally invasive treatments in chronic pain syndromes.