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    Premature Adrenarche

    Premature Adrenarche is a topic covered in the Select 5-Minute Pediatrics Topics.

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    Basics

    Description

    • Appearance of pubic hair younger than age 8 years in girls and age 9 years in boys
    • Recent data suggest that the age of normal sexual development onset in girls is younger than previously recognized, but lowering of the traditionally accepted limits remains subject to debate.
    • Axillary hair, acne, and apocrine sweat gland secretion are not always present with premature adrenarche.
    • No other signs of sexual development are exhibited. Presence of breast development in girls or testicular enlargement in boys suggests precocious puberty and not premature adrenarche.
    • Occurs independently of hypothalamic–pituitary–gonadal axis activation

    Genetics

    Often sporadic. Familial patterns suggesting recessive and dominant inheritance have been described.

    Pathophysiology

    • Concentrations of adrenal steroids such as dehydroepiandrosterone (DHEA) and dehydroepiandrosterone-sulfate (DHEA-S) increase earlier than typically seen in normal puberty.
    • Adrenal zona reticularis normally begins to increase androgen secretion at age 7–8 years.

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    Citation

    Cabana, Michael D., editor. "Premature Adrenarche." Select 5-Minute Pediatrics Topics, 7th ed., Wolters Kluwer Health, 2015. Medicine Central, im.unboundmedicine.com/medicine/view/Select-5-Minute-Pediatric-Consult/14185/all/Premature_Adrenarche.
    Premature Adrenarche. In: Cabana MD, ed. Select 5-Minute Pediatrics Topics. 7th ed. Wolters Kluwer Health; 2015. https://im.unboundmedicine.com/medicine/view/Select-5-Minute-Pediatric-Consult/14185/all/Premature_Adrenarche. Accessed April 18, 2019.
    Premature Adrenarche. (2015). In Cabana, M. D. (Ed.), Select 5-Minute Pediatrics Topics. Available from https://im.unboundmedicine.com/medicine/view/Select-5-Minute-Pediatric-Consult/14185/all/Premature_Adrenarche
    Premature Adrenarche [Internet]. In: Cabana MD, editors. Select 5-Minute Pediatrics Topics. Wolters Kluwer Health; 2015. [cited 2019 April 18]. Available from: https://im.unboundmedicine.com/medicine/view/Select-5-Minute-Pediatric-Consult/14185/all/Premature_Adrenarche.
    * Article titles in AMA citation format should be in sentence-case
    TY - ELEC T1 - Premature Adrenarche ID - 14185 ED - Cabana,Michael D, BT - Select 5-Minute Pediatrics Topics UR - https://im.unboundmedicine.com/medicine/view/Select-5-Minute-Pediatric-Consult/14185/all/Premature_Adrenarche PB - Wolters Kluwer Health ET - 7 DB - Medicine Central DP - Unbound Medicine ER -