Becker's muscular dystrophy (redirected from Becker's)

dystrophy /dys·tro·phy/ (dis´trof-e) any disorder due to defective or faulty nutrition.dystroph´ic

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adiposogenital dystrophy  a condition marked by adiposity of the feminine type, genital hypoplasia, changes in secondary sex characters, and metabolic disturbances; seen with lesions of the hypothalamus.

Becker's muscular dystrophy , Becker type muscular dystrophy a form closely resembling pseudohypertrophic muscular dystrophy but having a late onset and slowly progressive course; transmitted as an X-linked recessive trait.

Duchenne's dystrophy , Duchenne's muscular dystrophy, Duchenne type muscular dystrophy the most common and severe type of pseudohypertrophic muscular dystrophy; it begins in early childhood, is chronic and progressive, and is characterized by increasing weakness in the pelvic and shoulder girdles, pseudohypertrophy of muscles followed by atrophy, lordosis, and a peculiar swinging gait with the legs kept wide apart.

Emery-Dreifuss muscular dystrophy  a rare X-linked form of muscular dystrophy beginning early in life and involving slowly progressive weakness of the upper arm and pelvic girdle muscles, with cardiomyopathy and flexion contractures of the elbows; muscles are not hypertrophied.

facioscapulohumeral muscular dystrophy  a relatively benign form of muscular dystrophy, with marked atrophy of the muscles of the face, shoulder girdle, and arm.

Fukuyama type congenital muscular dystrophy  a form of muscular dystrophy with muscle abnormalities resembling those of Duchenne's muscular dystrophy; characterized also by mental retardation with polymicrogyria and other cerebral abnormalities.

Landouzy dystrophy , Landouzy-Dejerine dystrophy, Landouzy-Dejerine muscular dystrophy facioscapulohumeral muscular d.

Leyden-Möbius muscular dystrophy , limb-girdle muscular dystrophy slowly progressive muscular dystrophy, usually beginning in childhood, marked by weakness and wasting in the pelvic girdle (pelvifemoral muscular dystrophy) or shoulder girdle (scapulohumeral muscular dystrophy) .

muscular dystrophy  a group of genetically determined, painless, degenerative myopathies marked by muscular weakness and atrophy without nervous system involvement. The three main types are pseudohypertrophic muscular d., facioscapulohumeral muscular d., and limb-girdle muscular d.

myotonic dystrophy  a rare, slowly progressive, hereditary disease, marked by myotonia followed by muscular atrophy (especially of the face and neck), cataracts, hypogonadism, frontal balding, and cardiac disorders.

oculopharyngeal dystrophy , oculopharyngeal muscular dystrophy a form with onset in adulthood, characterized by weakness of the external ocular and pharyngeal muscles that causes ptosis, ophthalmoplegia, and dysphagia.

pseudohypertrophic muscular dystrophy  a group of muscular dystrophies characterized by enlargement (pseudohypertrophy) of muscles, most commonly Duchenne's muscular d. or Becker's muscular d.

reflex sympathetic dystrophy  a series of changes caused by the sympathetic nervous system, marked by pallor or rubor, pain, sweating, edema, or osteoporosis, following muscle, bone, nerve, or blood vessel trauma.

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Becker's muscular dystrophy

Etymology: Peter E. Becker, German geneticist, b. 1908

a chronic degenerative disease of the muscles, characterized by progressive weakness. It occurs in childhood between 8 and 20 years of age. It occurs less frequently, progresses more slowly, and has a better prognosis than the more common pseudohypertrophic form of muscular dystrophy. The pathophysiologic characteristics of the disease are not understood; it is transmitted genetically as an autosomal-recessive trait. Also called benign pseudohypertrophic muscular dystrophy. Compare Duchenne's muscular dystrophy.

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Becker's muscular dystrophy

Neurology An X-linked condition characterized by slowly progressive muscle weakness of the legs and pelvis, difficulty walking, mental retardation, fatigue and pseudohypertrophy of calf muscles