What HYDRANENCEPHALY means: Hydranencephaly - Hydranencephaly is a rare condition in which the brain's cerebral hemispheres are absent and replaced by sacs filled with cerebrospinal fluid. An infant with hydranencephaly may appear normal at birth. The infant's head size and spontaneous reflexes such as sucking, swallowing, crying, and moving the arms and legs may all seem normal. However, after a few weeks the infant usually becomes irritable and has increased muscle tone. After a few months of life, seizures and hydrocephalus (excessive accumulation of cerebrospinal fluid in the brain) may develop. Other symptoms may include visual impairment, lack of growth, deafness, blindness, spastic quadriparesis (paralysis), and intellectual deficits.
- Definition Hirayama Syndrome - Monomelic Amyotrophy (MMA):
- Dictionary Monomelic amyotrophy (MMA) is characterized by progressive degeneration and loss of motor neurons, the nerve cells in the brain and spinal cord that are responsible for controlling voluntary muscles hydranencephaly definition.
- Definition Hydromyelia:
- Dictionary refers to an abnormal widening of the central canal of the spinal cord that creates a cavity in which cerebrospinal fluid (commonly known as spinal fluid) can accumulate. As spinal fluid builds up hydranencephaly explain.
- Definition Headache:
- Dictionary are four types of headache: vascular, muscle contraction (tension), traction, and inflammatory. The most common type of vascular headache is migraine. Migraine headaches are usually characterized by hydranencephaly what is.
- Definition Hypoxia:
- Dictionary Hypoxia - is a restriction in blood supply (and therefore oxygen supply) to an organ or section of the body, generally due to constriction or blocking of blood vessels hydranencephaly meaning.
