[Double lip treated with "midmoon" incision. Report of a case]

A double-lip is an anomaly which may be either congenital or acquired and may occur either isolated or as a component of Ascher's syndrome. The upper lip is involved more often than the lower, although on occasion both may be involved. Apart from a deformity that interferes with mastication and speech, surgical treatment may be indicated for cosmetic reasons. Various surgical techniques to correct the double lip have been described: elliptical incision, w-plasty, triangle incision and elliptical incision on each side, combined with a vertical midline z-plasty to release the lip's central constriction. In the case presented a long midmoon incision was used, preserving the maxillary labial frenum. Satisfactory function and aesthetic results were achieved in this patient.