The PAP Flap is know as the profunda artery perforator flap, and utilizes the tissues of the upper thigh to reconstruct the breast following mastectomy.
The PAP Flap transfers only the skin and the fat, which are taken from the inner thigh and lower buttock, leaving the scar well hidden in the crease. The skin and fat in this area get blood flow from the profunda femoris artery, which allow for versatility in choosing reattachment vessels at the mastectomy site. In addition, the skin and fat are ideal for coning to reconstruct a natural breast and, due to the location of the dissection, there is a greater reduction for the risk of lymphedema and seromas.
While the PAP flap does not provide as much volume for breast reconstruction as a DIEP flap, it’s quickly becoming the go-to option after the DIEP.