GYNECOMASTIA S.M.R. Hakimian General Surgeon Fellowship of Cancer Surgery.

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Presentation transcript:

GYNECOMASTIA S.M.R. Hakimian General Surgeon Fellowship of Cancer Surgery

INTRODUCTION Gynecomastia: benign proliferation of male breast glandular tissue Gynecomastia: benign proliferation of male breast glandular tissue Pseudogynecomastia: accumulation of subareolar fat without real proliferation of glandular tissue. Pseudogynecomastia: accumulation of subareolar fat without real proliferation of glandular tissue. usually caused by increased estrogen activity, decreased testosterone activity, or the use of numerous medications usually caused by increased estrogen activity, decreased testosterone activity, or the use of numerous medications prevalence of A symptomatic gynecomastia is 60% to 90% in neonates, 50% to 60% in adolescents, and up to 70% in men aged 50 to 69 years prevalence of A symptomatic gynecomastia is 60% to 90% in neonates, 50% to 60% in adolescents, and up to 70% in men aged 50 to 69 years

PATHOPHYSIOLOGY Elevated serum estrogen levels: Elevated serum estrogen levels: may be a result of estrogen-secreting neoplasms or their precursors (eg, Leydig or Sertoli cell tumors, human chorionic gonadotropin [hCG]– producing tumors, and adrenocortical tumors) may be a result of estrogen-secreting neoplasms or their precursors (eg, Leydig or Sertoli cell tumors, human chorionic gonadotropin [hCG]– producing tumors, and adrenocortical tumors) but more commonly are caused by increased extragonadal conversion of androgens to estrogens by tissue aromatase (as occurs in obesity). Decreased free serum testosterone: Decreased free serum testosterone: in patients with gonadal failure, which can be primary (Klinefelter syndrome, mumps orchitis, castration) or secondary (hypothalamic and pituitary disease).

Androgen resistance syndromes due to impaired activity of enzymes involved in the biosynthesis of testosterone can also be associated with gynecomastia. Androgen resistance syndromes due to impaired activity of enzymes involved in the biosynthesis of testosterone can also be associated with gynecomastia. The balance between free testosterone and estrogen is also affected by serum levels of sex hormone–binding globulin, which is the proposed mechanism of gynecomastia in certain conditions, such as hyperthyroidism, chronic liver disease, and the use of some medications such as spironolactone. The balance between free testosterone and estrogen is also affected by serum levels of sex hormone–binding globulin, which is the proposed mechanism of gynecomastia in certain conditions, such as hyperthyroidism, chronic liver disease, and the use of some medications such as spironolactone. Receptors of androgens can also have genetic defects or become blocked by certain medications (eg, bicalutamide, used in the treatment of prostate cancer), and the receptors of estrogens can be activated by certain medications or environmental exposures Receptors of androgens can also have genetic defects or become blocked by certain medications (eg, bicalutamide, used in the treatment of prostate cancer), and the receptors of estrogens can be activated by certain medications or environmental exposures

HISTORY AND PHYSICAL EXAMINATION a palpable, tender, firm, mobile, disclike mound of tissues a palpable, tender, firm, mobile, disclike mound of tissues Pseudogynecomastia: diffuse breast enlargement without a subareolar palpable nodule. These patients do not need additional work-up and only require reassurance. Pseudogynecomastia: diffuse breast enlargement without a subareolar palpable nodule. These patients do not need additional work-up and only require reassurance.

MEDICAL MANAGEMENT Over time, fibrotic tissue replaces symptomatic proliferation of glandular tissue and tenderness resolves. Over time, fibrotic tissue replaces symptomatic proliferation of glandular tissue and tenderness resolves. Most cases of pubertal gynecomastia usually resolve in less than a year. Most cases of pubertal gynecomastia usually resolve in less than a year. Causative medications should be withdrawn or the underlying causative medical conditions (eg, hyperthyroidism) should be addressed. Causative medications should be withdrawn or the underlying causative medical conditions (eg, hyperthyroidism) should be addressed. tamoxifen or raloxifene tamoxifen or raloxifene Dihydrotestosterone, danazol, clomiphene, and aromatase inhibitors such as testolactone and anastrozole may also have benefit Dihydrotestosterone, danazol, clomiphene, and aromatase inhibitors such as testolactone and anastrozole may also have benefit

SURGICAL MANAGEMENT most commonly used technique is subcutaneous mastectomy that involves the direct resection of the glandular tissue using a periareolar or transareolar approach with or without associated liposuction. most commonly used technique is subcutaneous mastectomy that involves the direct resection of the glandular tissue using a periareolar or transareolar approach with or without associated liposuction. Liposuction alone may be sufficient if breast enlargement is purely due to excess fatty tissue without substantial glandular hypertrophy Liposuction alone may be sufficient if breast enlargement is purely due to excess fatty tissue without substantial glandular hypertrophy

SMALL BREAST (MICROMASTIA)

MEDICAL MANAGEMENT There is no medicine of any kind, no work-out machine or exercise that will significantly change the shape or size of breasts

SURGICAL MANAGEMENT Indications: Indications: very unhappiness with breast size or shape, or have had part of a breast removed as a result of cancer. Silicon implants: FDA approval Silicon implants: FDA approval The implants are placed on the chest under the muscles The implants are inserted under the skin