What CHIARI MALFORMATION means: Chiari Malformation - (CMs) are structural defects in the cerebellum, the part of the brain that controls balance. When the indented bony space at the lower rear of the skull is smaller than normal, the cerebellum and brainstem can be pushed downward. The resulting pressure on the cerebellum can block the flow of cerebrospinal fluid (the liquid that surrounds and protects the brain and spinal cord) and can cause a range of symptoms including dizziness, muscle weakness, numbness, vision problems, headache, and problems with balance and coordination. There are three primary types of CM. The most common is Type I, which may not cause symptoms and is often found by accident during an examination for another condition. Type II (also called Arnold-Chiari malformation) is usually accompanied by a myelomeningocele-a form of spina bifida that occurs when the spinal canal and backbone do not close before birth, causing the spinal cord to protrude through an opening in the back. This can cause partial or complete paralysis below the spinal opening. Type III is the most serious form of CM, and causes severe neurological defects. Other conditions sometimes associated with CM include hydrocephalus, syringomyelia, and spinal curvature.
- Definition Colpocephaly:
- Dictionary congenital brain abnormality in which the occipital horns - the posterior or rear portion of the lateral ventricles (cavities) of the brain - are larger than normal because white matter in the chiari malformation definition.
- Definition Central Cord Syndrome:
- Dictionary Syndrome - is a form of incomplete spinal cord injury characterized by impairment in the arms and hands and to a lesser extent in the legs. The brain's ability to send and receive signals to and chiari malformation explain.
- Definition Congenital Myasthenia:
- Dictionary Myasthenia - is an inherited disorder that affects the transmission of signals to the muscles. It results from a variety of genetic defects at the molecules associated with neuromuscular transmission chiari malformation what is.
- Definition Coma And Persistent Vegetative State:
- Dictionary Vegetative State - A coma is a profound or deep state of unconsciousness. An individual in a state of coma is alive but unable to move or respond to his or her environment. Coma may occur as a chiari malformation meaning.
