Brain Injury Terms and Definitions

amyotrophic lateral sclerosis (ALS)
Also known as Lou Gehrig's disease, ALS causes degeneration of the nerve cells in certain regions of the brain and spinal cord that control the muscles.

Alexander disease
Alexander disease is considered one of the leukodystrophies, a group of disorders where the primary abnormality is the inability to maintain the fatty covering (myelin) that insulates nerve fibers in the brain. Alexander disease is a rare disorder of the nervous system that usually begins during infancy or early childhood.

stroke
A condition produced by a blood clot that lodges in an artery and blocks the flow of blood to a portion of the brain, producing symptoms ranging from paralysis of limbs and loss of speech to unconsciousness and death. Less commonly, a stroke may be the result of bleeding into the substance of the brain.

Central nervous system Birth Defect
Neural tube defects, hydrocephaly, holoprosencephaly, Dandy-Walker malformation

Jackson-Weiss syndrome
Many of the characteristic facial features of Jackson-Weiss syndrome result from the premature fusion of the skull bones. The head is unable to grow normally, which can lead to a misshapen skull, widely spaced eyes, and a bulging forehead. Foot abnormalities are the most consistent characteristic, as not all individuals with Jackson-Weiss syndrome have abnormal skull or facial features.

Spina bifida
Is a condition that often has disabling consequences. With severe spina bifida, a person’s legs and feet are paralyzed, and there are problems with bowel and bladder control. Learning disabilities are common, and mental retardation sometimes occurs

Genitourinary Birth Defect
Renal agenesis (bilateral), hypospadias (2nd or 3rd degree)

Parkinson's disease
A progressive degeneration of nerve cells in the part of the brain that helps control muscle movement.

Alzheimer's disease
Severe form of dementia caused by significant deterioration of brain tissue.

cerebral palsy
A disorder caused by injury to the cerebral area of the brain that occurs before or during birth or in the first few months after birth. Damage to the cerebrum may cause paralysis (palsy) in one or more parts of the body.