BACKGROUND Gynecomastia is a common finding in male subjects which incidence varies widely in the world population. In adolescents, it is frequently temporary but, if it becomes persistent, it generates considerable embarrassment, inducing the patients to seek surgical consultation. Even in patients with good body contour, gynecomastia creates even greater distress considering the special atten...

Physiology and molecular mechanisms Gynecomastia is defined as the growth of the male mammary gland to become palpable and/or visible. During embryogenesis, the differentiation of the mammary gland and surrounding estroma, as well as the areola and the nipple, is similar in the two sexes. It is well established that estrogens stimulate breast growth. The production of estrogens during pregnancy...

The male mammary glands often undergo hyperplasia in the presence of tumors associated with a high urinary excretion of chorionic gonadotropin. Included in this group are the chorioepitheliomas, both testiculari'3 and extragenital,"" and, more rarely, teratomas"' and seminomas""' of the testis. Although the histological and clinical features differ in each of these tumors, there is reason to be...

Background: Gynecomastia is a broadening of the glandular breast tissue and overlying skin in boys. The infection handle related with uneasiness, trouble, decreased quality life, an unsuitable body picture