Abstract
Boys and girls have identical breast tissue at birth. Differentiation starts under the influence of hormones at puberty. Estrogen stimulates proliferation of glandular tissue and androgen counteracts this effect. The majority of boys have 30 times higher level of testosterone and 3 times elevated level of estrogen in blood at this time. After the fast period of puberty, the transitive proliferation of ducts and stroma ends with atrophy of ducts and involution of mammary gland. Hence, the breast of the adult man is represented by adipose and fibrous tissues with insignificant subareolar residual ducts. Interstitial lymph nodes can be observed in some cases.
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© 2013 Springer-Verlag Berlin Heidelberg
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Sencha, A.N., Evseeva, E.V., Mogutov, M.S., Patrunov, Y.N. (2013). Breast Pathology in Men. In: Breast Ultrasound. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-36502-7_9
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DOI: https://doi.org/10.1007/978-3-642-36502-7_9
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Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-36501-0
Online ISBN: 978-3-642-36502-7
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