Diagnosaurus
Gynecomastia
Etiology
- Physiologic: neonatal, pubertal, aging, obesity
- Endocrine: hyperprolactinemia, hyperthyroidism, Klinefelter syndrome, hypogonadism
- Systemic disease: chronic liver or renal disease
- Neoplasms: adrenal, testicular, lung, liver, breast
- Drugs (selected): alcohol, amiodarone, anabolic steroids, cimetidine, diazepam, digoxin, estrogens, finasteride, flutamide, isoniazid (INH), ketoconazole, marijuana, omeprazole, opioids, progestins, protease inhibitors & antiretrovirals, spironolactone, testosterone, tricyclic antidepressants.
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Last updated: December 1, 2014
Citation
Zeiger, Roni F.. "Gynecomastia." Diagnosaurus, 4th ed., McGraw-Hill Education, 2014. Emergency Central, emergency.unboundmedicine.com/emergency/view/Diagnosaurus/114293/all/Gynecomastia.
Zeiger RFR. Gynecomastia. Diagnosaurus. McGraw-Hill Education; 2014. https://emergency.unboundmedicine.com/emergency/view/Diagnosaurus/114293/all/Gynecomastia. Accessed November 4, 2025.
Zeiger, R. F. (2014). Gynecomastia. In Diagnosaurus (4th ed.). McGraw-Hill Education. https://emergency.unboundmedicine.com/emergency/view/Diagnosaurus/114293/all/Gynecomastia
Zeiger RFR. Gynecomastia [Internet]. In: Diagnosaurus. McGraw-Hill Education; 2014. [cited 2025 November 04]. Available from: https://emergency.unboundmedicine.com/emergency/view/Diagnosaurus/114293/all/Gynecomastia.
* Article titles in AMA citation format should be in sentence-case
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T1 - Gynecomastia
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A1 - Zeiger,Roni F,
Y1 - 2014/12/01/
BT - Diagnosaurus
UR - https://emergency.unboundmedicine.com/emergency/view/Diagnosaurus/114293/all/Gynecomastia
PB - McGraw-Hill Education
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DB - Emergency Central
DP - Unbound Medicine
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