title: Reversible male infertility due to congenital adrenal hyperplasia.
abstract: We have studied a patient who was azoospermic and infertile. The cause of his infertility was unusual and curable: untreated congenital adrenal hyperplasia resulting from a partial 21-hydroxylase deficiency. The diagnosis was suggested by the combination of small testes, elevated levels of testosterone and suppressed levels of gonadotrophins.
mesh_terms: D000312:Adrenal Hyperplasia, Congenital / Q000150:complications* / Q000188:drug therapy; D000328:Adult; D003907:Dexamethasone / Q000627:therapeutic use; D006801:Humans; D007248:Infertility, Male / Q000209:etiology*; D008297:Male
chemical_list: D003907:Dexamethasone