Pronunciation: (brayn TOO-mer)
The growth of abnormal cells in the tissues of the brain. Brain tumors can be benign (not cancer) or malignant (cancer).
Source: NCI Dictionary of Cancer Terms
Caption: Anatomy of the brain, showing the cerebrum, cerebellum, brain stem, and other parts of the brain.
Caption: Anatomy of the inside of the brain, showing the pineal and pituitary glands, optic nerve, ventricles (with cerebrospinal fluid shown in blue), and other parts of the brain.2004-08-24 Date last modified: 2010-10-21