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Revista de la Sociedad Boliviana de Pediatría

On-line version ISSN 1024-0675


HAYES DORADO, Juan Pablo; MONTERO JUSTINIANO, Walter  and  EID LIT, Martha. Precocious thelarche. Rev. bol. ped. [online]. 2012, vol.51, n.3, pp.176-180. ISSN 1024-0675.

Introduction: the precocious thelarche is defined by the presence of breast development before eight years of age, in the absence of other clinical signs of sexual maturation. Methods: we studied girls under eight years old, attended at the pediatric endocrinology clinic of the Hospital Santa Cruz, during five years, who went to the doctor because of thelarche. Results: we attended 119 girls, 70% of them were younger had two years, most (86% of total) had age appropriate stature, overweight was diagnosed in 33% of patients (n=39) and obesity in 10% of the cases (n=12), bone age was found according to chronological age in 108 girls (91% of total), with normal gynecological ultrasound as plasma levels of LH and FSH (prepubertal range), prolactin, estradiol and TSH in 116 patients (97% of cases). Precocious puberty was diagnosed in three girls; 116 patients (97% of the total) had precocious thelarche. Conclusions: the precocious thelarche is not always a self-limited condition, so it is important to periodically check the girls affected.

Keywords : Precocious thelarche; overweight; bone age; gynecological ultrasound; precocious puberty.

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