| umls-concept:C0018418 | skos:definition | MSH: Enlargement of the BREAST in the males, caused by an excess of ESTROGENS. Physiological gynecomastia is normally observed in NEWBORNS; ADOLESCENT; and AGING males.,CSP: female mammary morphology in a XY genotype.,NCI: A disorder characterized by excessive development of the breasts in males.,NCI: Excessive development of the breasts in males; usually the result of hormonal imbalance or treatment with certain drugs. | lld:umls |
