IMAGENOLOGIA DE LA MAMA DANIELA BEDOYA VARELA

It is a modified sweat gland

It rests on the pectoralis major muscle

Breast lobe
Lobule
Milk ducts

Breasts milk phores

Mammary areola

Montgomery glands

Subclavian artery
Axillary
Thoracoacromial trunk

Acromial thoracic

Mammary branches

Piercing

Axillary nodes 75%

Supraclavicular branches of the superficial cervical plexus

Stage I or Prepubertal

There is no palpable breast tissue, only protruding nipple, the areola is not pigmented. It usually occurs between 7 - 9 years of age.

Stage II

Occurs between 9-10 years of age, breast tissue is palpated under the areola. in this stage the thelarchy takes place consists of the development of the breast.

Stage III

corresponds to the second period of puberty, occurs between 13-14 years. There is a greater increase in the breast with the areola more pigmented and defined, three contours are observed: nipple, areola and breast.

Stage IV

It corresponds to the maturity of the breast, in which the nipple protrudes and the areola adapts to the same contour of the breast.

During the 5 or 6 week of gestation a thickening of the ectoderm develops

It extends from the axillary region to the inguinal area called the mammary crest.

The mammary crest will give rise to eight glandular foci aligned in a manner called by some milk lines.

The fourth focus will become an adult breast through a series of evolutionary changes, which will not end until maturity.

The remaining foci will atrophy, these residual foci can give rise to accessory breast tissue.

It is made up of two types

epithelial

A more important fabric that is responsible for upholstering or covering the interior of the ductual and lobular-acinar system.

Galactophoric system formed by a set of 15 to 20 lobules for each breast, which in turn has lobules

They drain through linked interlobular ducts into the galactophoric duct.

They drain into the galactophore or lactiferous sinus and flow into the nipple producing lactopoiesis (production and secretion of milk

conjunctive

It is made up of 3 types

Loose located between the ductoacinar system or intralobular stroma

Dense Made up of Cooper's ligamentous system

Fat occupies the subcutaneous, intraglandular and retroglandular space.