Brain Tumour develops when abnormal cells form inside the brain. The symptoms of Brain stem tumors vary greatly and can involve Ataxia, Cranial Nerve Palsy, headaches, problems with speech and swallowing, hearing loss, weakness, Hemiparesis, vision abnormalities, ptosis, and behavioral changes. Another possible symptom is vomiting. Any brain tumour is inherently serious and life-threatening because of its infiltrative character in the limited space of the Intracranial Cavity.