Medical Dictionary Definitions A-Z List
Medical Dictionary Definitions A - Z - «S»:
Syndrome, kinky hair
Syndrome, kinky hair: See: Menkes syndrome....
Syndrome, Klinefelter: A chromosome condition in boys and men that is usually due to their having 47 chromosomes with XXY sex chromosomes, rather than having the usual 46 chromosomes with XY sex chromosomes.
XXY is one of the most common chromosomal abnormalities. It occurs in 1 in 500 male birth...
Syndrome, Klippel-Feil: See: Klippel-Feil sequence....
Syndrome, Klippel-Trenaunay-Weber (KTW)
Syndrome, Klippel-Trenaunay-Weber (KTW): A congenital malformation
syndrome characterized by the triad of asymmetric limb hypertrophy, hemangiomata, and
nevi. "Asymmetric limb hypertrophy" is enlargement of one limb and not the
corresponding limb on the other side, the enlarged limb being ...
Syndrome, Kostmann: A condition with a lack of neutrophils (a type of white blood cell that is important in fighting infection). Children with the syndrome suffer frequent infections from bacteria which in the past led to death in three-quarters of cases before 3 years of age. This disease is also ...
Syndrome, Landau-Kleffner: See Landau-Kleffner syndrome....
Syndrome, Launois-Bensaude: A disorder characterized by painless symmetrical diffuse deposits of fat beneath the skin of the neck, upper trunk, arms and legs.
The condition is thought to be genetic although its exact mode of inheritance is uncertain; it may be a mitochondrial DNA disease. It freque...
Syndrome, Lennox: See: Lennox syndrome....
Syndrome, Lennox-Gastaut: A severe form of epilepsy
that usually begins in early childhood and is characterized by frequent seizures of
multiple types, mental impairment, and a particular brain wave pattern (a slow
spike-and-wave pattern). The seizures that are notoriously hard to treat and may lea...
Syndrome, Lenz microphthalmia
Syndrome, Lenz microphthalmia: See: Lenz microphthalmia syndrome....
Syndrome, Li-Fraumeni (LFS)
Syndrome, Li-Fraumeni (LFS): This is an extraordinary
cancer family syndrome. People with LFS have a tendency to develop a
great diversity of tumors.
LFS was first discovered in 1969. By reviewing the medical
records and death certificates of children with a relatively rare
tumor, a soft tissue ...
Syndrome, lipodystrophy: A
disturbance of lipid (fat) metabolism that involves the
partial or total absence of fat and often the abnormal
deposition and distribution of fat in the body. There are a
number of different lipodystrophy syndromes. Some of them
are congenital (present at birth) whil...
Syndrome, locked-in: A neurological disorder characterized by complete paralysis of voluntary muscles in all parts of the body except for those that control eye movement. The locked-in syndrome is usually a complication of a cerebrovascular accident (a stroke) in the base of the pons in the brainste...
Syndrome, long QT
Syndrome, long QT: See Long QT syndrome....
Syndrome, Marfan: See: Marfan syndrome....