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A brain tumor is an abnormal growth of cells in the brain or the membranes surrounding the brain (a tumor known as a meningioma). The tumor increas...
A brain abscess is an accumulation of pus (due to infection) inside the brain. These abscesses produce symptoms by raising pressure inside the rigi...
Hydrocephalus is an uncommon disorder involving the overaccumulation of cerebrospinal fluid (CSF) in the fluid-filled spaces, or ventricles, within...
A brain hemorrhage, one of the two main types of strokes (see Stroke for more information), results when a ruptured artery causes bleeding into the...
A transient ischemic attack (TIA) occurs when blood flow to part of the brain is interrupted by a temporary blockage in an artery supplying the bra...
Reye's syndrome is a rare, life-threatening disorder that almost exclusively affects children under age 16, typically between ages six and eight. A...
A concussion is characterized by a brief loss of consciousness following an injury or blow to the head. The blow is forceful enough to cause the br...
Meningitis is inflammation of the meninges, the three thin layers of tissue that cover the brain. It is almost always due to an infection—usu...
Benign paroxysmal positional vertigo (BPPV) is dizziness that arises abruptly upon changing the position of the head (for instance, while tilting t...
Shingles, also known as herpes zoster, is a disorder caused by varicella zoster, the same virus that causes chicken pox. After an attack of chicken...