Symptoms of<unk> s depend on which part of the central nervous system is affected. A brain<unk>  can cause headaches, vomiting, seizures, and cranial nerve disorders as a result of increased intracranial pressure. A<unk>  of the optic nerve can cause visual loss. Spinal cord<unk> s can cause pain, weakness, or numbness in the extremities.<unk> s do not usually metastasize by the bloodstream, but they can spread via the cerebrospinal fluid and cause "drop metastases" to the spinal cord. Complex visual hallucinations have been described as a symptom of low-grade<unk> . A child who has a subacute disorder of the central nervous system that produces cranial nerve abnormalities (especially of cranial nerve VII and the lower bulbar nerves), long-tract signs, unsteady gait secondary to spasticity, and some behavioral changes is most likely to have a pontine<unk> .
Glioma
Gliosis
Glioblastoma
Astrocytoma
Meningioma
Malignant meningioma
Ameloblastoma
Coma