A paramedian cleft of the lower lip.

We report the unusual case of a baby with a paramedian cleft of the lower lip. In 1976, Tessier described a classification of craniofacial clefts based on personal observations, and he predicted the possibility of further clefts being discovered by labeling midline mandibular clefts "30." This case of a paramedian cleft of the lower lip would fit into what could be a new Tessier 28/29 cleft. In the future, clefts in new locations around the mouth may be seen, thus filling the gaps in Tessier's classification.