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  • Title: [Precocious pubarche: experience in 173 cases ].
    Author: Eyzaguirre FC, Bancalari R, Youlton R, Román R, Silva R, García H, Mericq V.
    Journal: Rev Med Chil; 2009 Jan; 137(1):31-8. PubMed ID: 19399319.
    Abstract:
    BACKGROUND: Precocious pubarche (PP), defined as the development of sexual pubic hair before 8 years of age in females and before 9 years in males, is usually a benign condition but it can also be the first sign of an underlying disease. AIM: To analyze the etiology and perform a short term follow up in a cohort of patients with PP. MATERIAL AND METHODS: A group of 173 patients (158 females) consulted for PP with a mean age of 7.4+/-0.1 years. These patients were followed between 15 to 60 months. Anthropometric measurements, bone age, serum levels of total testosterone, 17 OH progesterone (17 OHP) and dehydroepiandrosterone sulphate (DHEAS) were evaluated. RESULTS: Mean birth weight and length was 3024.1+/-50.5 g and 48.5+/-0.3 cm, respectively. Ten percent of children were small for gestational age at birth. Bone age was accelerated by 1.1+/-0.01 years. One hundred and twelve patients were classified as having idiopathic PP (64.7%; 105 females), 29 as central precocious puberty (16.8%; only females), 16 as exaggerated adrenarche (EA 9.2%; 13 females) and 16 as non classical adrenal hyperplasia (9.2%; 11 females). CONCLUSIONS: PP represents a common and usually benign sign. However, 26% of cases had a pathologic underlying condition. Therefore, all children with PP should be evaluated by a pediatric endocrinologist. Low birth weight was not frequent in this cohort and these patients did not show EA .
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