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Gynecomastia

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Definition: Enlargement of the BREAST in the males, caused by an excess of ESTROGENS. Physiological gynecomastia is normally observed in NEWBORNS; ADOLESCENT; and AGING males.  check tags HUMANS & MALE    Other names Gynecomastia, Adolescent; Enlargement, Male Breast; Breast Enlargement, Male; Newborn Gynecomastia; Male Breast Enlargement; Infant Gynecomastia; Adolescent Gynecomastia; Gynecomastia, Newborn; Gynecomastia, Infant
 
SubstanceCAS Registry & nameCategoriesSource
17-Hydroxysteroid Dehydrogenase Deficiency  0   *Gynecomastia *Steroid Metabolism, Inborn Errors *46, XY Disorders of Sex Development 17-Hydroxysteroid Dehydrogenases/deficiency.
Aromatase deficiency  0   *Gynecomastia *Infertility, Male *Metabolism, Inborn Errors *46, XX Disorders of Sex Development Aromatase/deficiency.
Wilson-Turner X-linked mental retardation syndrome  0   *Obesity *Gynecomastia *Mental Retardation, X-Linked.
Vasquez Hurst Sotos syndrome  0   *Gynecomastia *Hypogonadism *Intellectual Disability *Obesity *Genetic Diseases, X-Linked. J Pediatr. 1979;94(1):56-60

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Sources: NLM Medical Subject Headings, NIH UMLS, Drugs@FDA, FDA AERS original data copyright United States Government. No endorsement implied. Last modified 6/6/2012
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