[1] Brainstem gliomas start in the brain or spinal cord tissue and typically spread throughout the nervous system.

A sudden onset of symptoms tends to occur with more rapidly growing, high-grade tumors.

Neuroimaging, such as MRI, is the main diagnostic tool for brain stem gliomas.

[4] However, these treatments do produce side effects; most often including nausea, the breakdown of the immune system, and fatigue.

For some patients there is a chance of a neurological breakdown; this can include, but is not limited to, confusion and memory loss.