Medical Dictionary Definitions A-Z List
Medical Dictionary Definitions A - Z - «D»:
Dystonia, torsion: A form of dystonia known as
early-onset torsion dystonia (also called idiopathic or generalized torsion dystonia)
begins in childhood around the age of 12. Symptoms typically start in one part of the
body, usually in an arm or leg, and eventually spread to the rest of the body wit...
Dystonia, writer's cramp
Dystonia, writer's cramp: A dystonia that affects
the muscles of the hand and sometimes the forearm and only occurs during handwriting.
Similar focal dystonias have also been called typist's cramp, pianist's cramp,
musician's cramp, and golfer's cramp....
Dystrophia brevicollis congenita
Dystrophia brevicollis congenita: See: Klippel-Feil sequence....
Dystrophic epidermolysis bullosa
Dystrophic epidermolysis bullosa: A blistering skin condition inherited in both autosomal dominant and recessive manners and in which the filaments that anchor the epidermis to the underlying dermis are either absent or do not function. This is due to defects in the gene for type VII collagen, a fi...
Dystrophica myotonia:. See: Myotonic dystrophy....
Dystrophica myotonia 2
Dystrophica myotonia 2: See: Myotonic dystrophy type 2....
Dystrophy, autoimmune polyendocrinopathy
Dystrophy, autoimmune polyendocrinopathy-candidiasis-ectodermal (APECED): A genetic autoimmune disease with an extraordinary array of clinical features but characterized most often by at least 2 of the following 3 findings: hypoparathyroidism -- underfunction of the parathyroid glands which control ...
Dystrophy, cone: A disease of the cones, the specialized light-sensitive cells that act as photoreceptors in the retina of the eye, providing sharp central vision and color vision. The cone dystrophies are a form of genetic macular degeneration characterized by progressive deterioration of the cones...
Dystrophy, corneal: See: Corneal dystrophy....
Dystrophy, lattice: See: Lattice dystrophy....
Dystrophy, muscular: One of a group of genetic diseases characterized by progressive weakness and degeneration of the skeletal or voluntary muscles which control movement. The muscles of the heart and some other involuntary muscles are also affected in some forms of muscular dystrophy, and a few for...
Dystrophy, myotonic: An inherited disease in which the muscles contract but have decreasing power to relax -- this phenomenon is termed myotonia (irritability and prolonged contraction of muscles). The disease also produces leads to a mask-like expressionless face, premature balding, cataracts, and ...
Dysuria: Painful or difficult urination. This includes burning on urination. Dysuria is most commonly due to bacterial infection of the urinary tract causing inflammation of the bladder (cystitis) or kidney (pyelonephritis).
In women, dysuria may also reflect inflammation of the vagina (vaginitis) ...