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May 24, 2013
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Definition of Gynecomastia

Gynecomastia: Excessive development of the male breasts. Temporary enlargement of the breasts is not unusual or abnormal in boys during adolescence or during recovery from malnutrition. Gynecomastia may be abnormal as, for example, in Klinefelter's syndrome.

Picture of male on the left with no gynecomastia and the male on the right with gynecomastia

Source: MedTerms™ Medical Dictionary
http://www.medterms.com/script/main/art.asp?articlekey=3644
Last Editorial Review: 4/27/2011 5:27:15 PM

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