An aromatase-producing sex-cord tumor resulting in prepubertal gynecomastia

Patricia Coen, Richard Santen, Howard Kulin, Thomas Ballantine, Richard Zaino, Elizabeth Frauenhoffer, Danielle Boal, Sandra Inkster, Angela Brodie

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130 Scopus citations


GYNECOMASTIA in prepubertal children usually results from an increase in endogenous estrogen production. Estrogen biosynthesis involves the transformation of steroid precursors to androgens and then conversion of androgens to estrogens by the enzyme aromatase. Excessive production of estrogen may result from an increase in levels of endogenous substrate, aromatase activity, or both. A model for the isolated increase in aromatase activity is the Sebright Bantam rooster, in which the aromatase activity is increased 100-fold.1 A human counterpart of the Sebright Bantam rooster has also been described in which increased aromatase activity resulted in the overproduction of estradiol and gynecomastia.2 , 3 In. . .

Original languageEnglish (US)
Pages (from-to)317-322
Number of pages6
JournalNew England Journal of Medicine
Issue number5
StatePublished - Jan 31 1991

All Science Journal Classification (ASJC) codes

  • General Medicine


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