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 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 definition.
- Definition Hemiplegia Alterans:
- Dictionary Alternating hemiplegia is a rare neurological disorder that develops in childhood, usually before the first 4 years. The disorder is characterized by recurrent but temporary episodes of paralysis hydranencephaly explain.
- Definition HTLV-1 Associated Myelopathy:
- Dictionary Myelopathy - For several decades the term "tropical spastic paraparesis" (TSP) has been used to describe a chronic and progressive disease of the nervous system that affects adults living hydranencephaly what is.
- Definition Hemicrania Continua:
- Dictionary Hemicrania continua is a rare form of chronic headache marked by continuous pain on one side of the face that varies in severity. Superimposed on the continuous but fluctuating pain are occasional hydranencephaly meaning.