A 40 year old woman comes in with a dipple about 11 oclock and a mass is felt. Explain why a mass would cause a dipple in the breast.
The dipple is the result of the tumor mass pressing on the ligament of Cooper. The Cooper ligament is binded to the deep fascia and the skin of the breast. A mass can not affect the deep fascia attachment but it can pull the skin end in resulting in the dippling that is seen in this female.