Treatment of Bilateral Macrostomia (Lateral Lip Cleft): Case Report

Background: Macrostomia as a rare facial deformity is classified among facial clefts. It originates from failure in union of maxillary and mandibular prominences of first brachial arch during 7th embryonic week.
Case Presentation: We report a case of bilateral macrostomia (bilateral lip cleft) in a female newborn as a sole entity without other skeletal and facial deformities. The cleft was repaired by a simple linear triangular flap using extra oral landmarks to locate lip commissures. Patient was followed through a six-month period. Acceptable results were gained in mouth appearance as well functional aspects.
Conclusion: Commissural repair through a linear flap can result in minimal visible scar with satisfying results in both esthetics and functional aspects.