OBJECTIVE: The aim of this study was to evaluate the possibility of persistence of autonomous ovarian activity in girls with McCune-Albright syndrome (MAS) after withdrawal of medroxyprogesterone therapy administered for precocious puberty. DESIGN, SETTING, AND PARTICIPANTS: Five girls with MAS were followed-up 1.2 to 8.5 years after the end of treatment. The girls underwent luteinizing hormone-releasing hormone (LH-RH) tests, estradiol (E2) basal measurement, and pelvic ultrasound two times in the follow-up period. RESULTS: Menses resumed in four of five girls, 1.4 +/- 0.9 years after the end of treatment, at chronologic age of 11.3 +/- 1.3 years. Cycles for all girls were irregular. Three patients presented inadequate E2 levels (from 56 to 320 pg/mL) associated with low or absent gonadotropin response to LH-RH tests. The pelvic ultrasound showed ovarian cysts at the time of the study. CONCLUSION: These hormonal and ultrasonographic findings provide evidence of persistence of autonomous ovarian activity in some young women with MAS.
OBJECTIVE: The aim of this study was to evaluate the possibility of persistence of autonomous ovarian activity in girls with McCune-Albright syndrome (MAS) after withdrawal of medroxyprogesterone therapy administered for precocious puberty. DESIGN, SETTING, AND PARTICIPANTS: Five girls with MAS were followed-up 1.2 to 8.5 years after the end of treatment. The girls underwent luteinizing hormone-releasing hormone (LH-RH) tests, estradiol (E2) basal measurement, and pelvic ultrasound two times in the follow-up period. RESULTS: Menses resumed in four of five girls, 1.4 +/- 0.9 years after the end of treatment, at chronologic age of 11.3 +/- 1.3 years. Cycles for all girls were irregular. Three patients presented inadequate E2 levels (from 56 to 320 pg/mL) associated with low or absent gonadotropin response to LH-RH tests. The pelvic ultrasound showed ovarian cysts at the time of the study. CONCLUSION: These hormonal and ultrasonographic findings provide evidence of persistence of autonomous ovarian activity in some young women with MAS.