| congenital adrenal h. |
a group of inherited disorders in which deficiencies of enzymes that catalyze the biosynthesis of cortisol result in compensatory hypersecretion of corticotropin and subsequent adrenal hyperplasia as well as excessive androgen production. There are several different forms, numbered in order of increasing severity, of which the most common type is type III, or 21-hydroxylase deficiency (see accompanying table). They range from “classic” forms present at birth with severe salt wasting or hypertension and pseudohermaphroditism to less severe “nonclassic” forms of later onset. See also deficiency conditions at names of specific enzymes.
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| congenital aregenerative a. |
congenital hypoplastic a. (def. 1).
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| congenital articular r. |
rigid or deformed joints in newborn calves or lambs; a hereditary variety is seen among Charolais cattle, and a type acquired in utero is part of the Akabane virus disease. Called also congenital arthrogryposis.
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| congenital c. |
1. any of various usually bilateral opacities present at birth; they may be mild or severe and may or may not impair vision, depending upon their size, location, and density. Some have a hereditary, usually autosomal dominant cause; others result from intrauterine infection, drug-induced toxicity, ionizing radiation, trauma, prematurity, or chromosomal, endocrine, metabolic, or systemic disorders.; and a sizable percentage are of unknown cause. Congenital cataracts are often associated with low birth weight, central nervous system abnormalities, mental retardation, convulsions, and cerebral palsy. 2. developmental c..
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| congenital cerebral a. |
berry a.
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