Para commissural cleft of the lower lip: A first case described in the literature.

We described the first case of para-commissural cleft of the lower lip in a 2 year-old child. He is from a trichorionic triamniotic triplet pregnancy after ovarian stimulation. He has no history except a selective fetal reduction of the mother. We correct this cleft of the lower lip with a double plasty of Malek. The functional and aesthetic result is satisfactory. This particular cleft cannot be explained by the embryological theory. We favor two hypothesis to explain this anomaly: a vascular origin with the stapedial artery and the selective fetal reduction.