Webster's New World Medical Dictionary

dystonia, focal, due to torticollis
See 
torticollis.
dystonia, generalized torsion
See 
dystonia,
idiopathic torsion.
dystonia, idiopathic torsion
A form of torsion
dystonia that begins in childhood, around age 12.
Symptoms typically start in one part of the body,
usually in an arm or a leg, and eventually spread to
the rest of the body within about 5 years. Early-onset
torsion dystonia is not fatal, but it can be severely
debilitating. Also known as generalized torsion dys-
tonia. See also 
dystonia, torsion.
dystonia, laryngeal
See 
dysphonia, spasmodic.
dystonia, oromandibular
Dystonia that affects
the muscles of the jaw, lips, and tongue. The jaw
may be pulled either open or shut, and speech and
swallowing can be difficult.
dystonia, Segawa
See 
dopa-responsive dystonia.
dystonia, torsion
A type of dystonia in which
symptoms typically start in one part of the body, usu-
ally in an arm or a leg, and eventually spread to the
rest of the body. A form that strikes in childhood is
known as idiopathic torsion dystonia, early-onset
torsion dystonia, and generalized torsion dystonia.
See also 
dystonia, idiopathic torsion.
dystonia musculorum deformans
See 
dysto-
nia, torsion.
dystrophy, muscular
See 
muscular dystrophy.
dystrophy, myotonic
A relatively common inher-
ited disease in which the muscles contract but have
decreasing ability to relax (myotonia). Myotonic dys-
trophy is also characterized by the development of a
mask-like, expressionless face, premature balding,
cataracts, and abnormalities in heart rhythm. See
amplification; anticipation.
dysuria
Pain during urination, or difficulty uri-
nating. Dysuria is usually caused by inflammation of
the urethra, frequently as a result of infection.