The majority of brain tumors herald from another site in the body and travel in the vascular system to the brain; particularly the subtype adenocarcinoma. Less often, the malignancy will start from a mutated brain cell. These are almost always from one of the two types of cells – other than neurons – that exist within the brain; oligodendrocytes and astrocytes. In fact it is quite rare to have a neuron turn malignant. One of the most common intracranial tumors is not derived from the brain at all. A meningioma heralds from the rubbery meninges. These tumors have a good prognosis although they can cause problems if they grow sufficiently to irritate the surface of the brain. This cortical irritation can cause a seizure. The most common presenting symptom for a brain tumor is progressive weakness in a limb.
American Brain Tumor Association (info)
Natl Brain Tumor Society (research)
Brain Life (research)
1. Curveball, When Life Throws You a Brain Tumor – Liz Holzemen
2. Brain Tumors: Leaving the Garden of Eden – Paul Zeltzer
3. Like a Hole in the Head – Ivan Noble
4. Childhood brain and spinal cord tumors: a guide for families, friends and caregiver – T Shiminski-Maher, Patsy Cullen and Maria Sansalone