“…Vermilion switch flaps are interpolation flaps that may be useful for lateral defects, although these are staged flaps that require pedicle division approximately 10 days after surgery, and delay of pedicle division may make tailoring of the flap difficult . Island pedicle flaps are ideal for repairs involving considerable loss of the cutaneous upper lip, because incision lines can be placed in the vermilion crease inferiorly and in existing rhytides of the upper lip and melolabial fold superiorly …”