Bilateral macrostomia.

Macrostomia as a rare facial deformity is classified among facial clefts. It is a rare congenital anomaly which affects the aesthetics and function of the oral cavity. It is usually associated with deformities of other structures developed from the first and second branchial arches. Bilateral transverse cleft occurring alone is uncommon. Here we report a case of bilateral macrostomia (bilateral lip cleft) in a 5-year-old girl as a sole entity without other skeletal and facial deformities.