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StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2018-.
2018 Oct 27.

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St Joseph Regional Medical Center
Northwestern Un Feinberg School of Med


Gynecomastia relates to any condition in which the male breast volume is enlarged due to an increase in ductal tissue, stroma, or fat. Gynecomastia is derived from the Greek terms gyne and masto, gyne meaning feminine and masto meaning breasts. This condition most often occurs during times of hormonal change such as birth, adolescence and old age. There are many etiologies for this condition which include morbid obesity, steroid use, pharmacologic agents, medical conditions including hypogonadism, liver, and kidney failure. However, the majority of patients present with idiopathic gynecomastia. The treatment of this condition consists of treating the underlying condition, lab work, imaging, and surgical intervention, when necessary.

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