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  • Title: Detection of late-onset 21-hydroxylase deficiency congenital adrenal hyperplasia in adolescents.
    Author: Emans SJ, Grace E, Fleischnick E, Mansfield MJ, Crigler JF.
    Journal: Pediatrics; 1983 Nov; 72(5):690-5. PubMed ID: 6314235.
    Abstract:
    Because severe hirsutism is difficult to reverse, the evaluation of the adolescent girl with progressive hirsutism should aim at the pathophysiology of androgen excess in order to select appropriate therapies. A prospective study was undertaken to determine the occurrence of late-onset 21-hydroxylase deficiency among adolescents with androgen excess. Twenty-two young women (mean age 17.3 +/- 2.6 years) with androgen excess had serum 17-hydroxyprogesterone measured before and after bolus intravenous infusion of synthetic ACTH (Cortrosyn), 0.25 mg. Two patients, aged 13 and 19 years old, had elevated base line 17-hydroxyprogesterone and 30- and 60-minute responses to Cortrosyn consistent with 21-hydroxylase deficiency. Chromosome 6p haplotypes provided supportive evidence of 21-hydroxylase deficiency. The base line androgen levels, clinical presentation, and a four-day dexamethasone test did not distinguish patients with 21-hydroxylase deficiency from other hirsute adolescents. The Cortrosyn test identifies a population of adolescents who need long-term corticosteroid therapy. The use of major histocompatibility complex haplotypes could be of help in identifying affected siblings prior to the development of significant hirsutism.
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