brain tumor

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