Cooper's ligaments (also known as the suspensory ligaments of Cooper and the fibrocollagenous septa) are connective tissue in the breast that helps maintain structural integrity. Transmission diffraction tomography can reveal the anatomy. Cooper's Suspensory Ligament should not be confused with the pectineal ligament (sometimes called the inguinal ligament of Cooper) which shares the same eponym. [ http://en.wikipedia.org/wiki/Cooper%27s_ligaments ]