What exactly are brainstem gliomas?

Tumor in brain: Gliomas are tumors arising from cells called glia in the brain. This is the most common brain tumor in adults. Brainstem is the part of the brain that contains many automatic functions and links the bulk of the brain with the body. This includes the midbrain, pons, and medulla.

Brain tumor: Gliomas are brain tumors that arise from glial cells in the brain. They can be low grade or very malignant. Brainstem gloom as are a subtype that most commonly occur in children. They occur in a very sensitive part of the brain called the brainstem.

Cancer: Glioma is a type of primary brain tumor, meaning it starts in the brain and does not spread to the brain from somewhere else. A brainstem glioma is located in the brainstem. They tend to occur in children. They are extremely rare in adults. A web search should turn up abundant information about them. It is impossible to give more than the briefest definition in 400 characters.