" /> Hypothyroidism, congenital, nongoitrous, 1 - CISMeF





Preferred Label : Hypothyroidism, congenital, nongoitrous, 1;

Symbol : CHNG1;

CISMeF acronym : CHNG1; RTSH;

Type : Phenotype, molecular basis known;

Alternative titles and symbols : Hypothyroidism, nonautoimmune; Hypothyroidism, congenital, due to tsh resistance; Hypothyroidism due to unresponsiveness to thyrotropin; Tsh resistance; Thyrotropin resistance; RTSH; Thyroid-stimulating hormone, resistance to;

Description : Resistance to thyroid-stimulating hormone (TSH; see 188540), a hallmark of congenital nongoitrous hypothyroidism, causes increased levels of plasma TSH and low levels of thyroid hormone. Only a subset of patients develop frank hypothyroidism; the remainder are euthyroid and asymptomatic (so-called compensated hypothyroidism) and are usually detected by neonatal screening programs (Paschke and Ludgate, 1997). - Genetic Heterogeneity of Congenital Nongoitrous Hypothyroidism;

Inheritance : Autosomal recessive;

Molecular basis : Caused by mutation in the thyroid-stimulating hormone receptor gene (TSHR, 603372.0005);

Laboratory abnormalities : Increased serum thyroid-stimulating hormone (TSH); Normal or mildly decreased serum levels of free thyroid hormones;

Prefixed ID : #275200;

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04/05/2025


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