Breast tissue: During puberty, adolescent males develop transient bilateral breast buds (made of breast tissue). Breast tissue is hormonally senstive so it is likely to change during the time of puberty. If a 'breast bud' persists and is unilateral (one side only)-- it should be evaluted. Young men may develop breast cancer (usually those with brca1/2 gene abnormalities).
Answered 2/23/2018
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