Breast D/O of Development
- Milkline Remnants.
- Accessory Axillary Breast Tissue.
- Congenital Nipple Inversion.
Supernumerary nipples or breasts result from the________________which extends from the axilla to the perineum.
persistence of epidermal thickenings along
the milk line,
The disorders that affect the
normally situated breast rarely arise in these heterotopic, hormone-responsive foci, which most
commonly come to attention as a result of painful premenstrual enlargements.
In some women the normal ductal system extends into the subcutaneous tissue of the chest wall
or the axillary fossa (the “axillary tail of Spence”).
This epithelium can undergo lactational
changes (resulting in a palpable mass) or give rise to carcinomas outside the breast proper.
Therefore, prophylactic mastectomies markedly reduce, but do not completely eliminate, the
risk of breast cancer.
Accessory Axillary Breast Tissue.
The failure of the nipple to evert during development is common and may be unilateral.
Congenital Nipple Inversion.
Congenitally inverted nipples usually correct spontaneously during______________
pregnancy, or can
sometimes be everted by simple traction
_____________is of more concern, since it
may indicate the presence of an invasive cancer or an inflammatory disorder (e.g., recurrent
subareolar abscess or duct ectasia).
. Acquired nipple retraction