Breast fat

Corpus adiposum mammae

Integumentary (skin)Fat & fasciaThoraxLeft and right

View left in 3D View right in 3D

Shown on the female body.

What it is
The subcutaneous and retromammary fat that makes up most of the volume of the non-lactating breast, divided by suspensory (Cooper) ligaments.
Function
Gives the breast its shape and cushions the glandular tissue.
Size
Majority of breast volume (typically 200–500 ml per breast)
Clinical note
Cooper ligament shortening by a tumour dimples the overlying skin — a warning sign on examination.