[Hypophyseal gonadotropin secretion in sexual precocity with McCune-Albright's syndrome].

In three young girls with isosexual precocity and fibrous dysplasia of bones, plasma gonadotropins (LH and FSH) response to releasing hormone (LH-RH) has been much under the mean response in true female precocious puberty. These data and those previously reported in the literature suggest that MacCune-Albright's syndrome correlates to an hypothalamo-pituitary dysfunction rather than to a true prematurity.