Midline cleft of the lower lip is defined as a midline vertical cleft of the soft tissue of the lower lip. It may present with a midline cleft of the mandible. It may also be accompanied by other congenital anomalies such as a cleft tongue, ankyloglossia, a heart lesion, and absence of the hyoid bone. The etiologic cause is thought to be a failure of mesodermal penetration into the midline structures of the first branchial arch. This case report is on a female child who presented with an incomplete midline cleft of the soft tissue of the lower lip. It was surgically corrected with a vertical wedge excision and primary closure.
Microdeletion of the Van der Woude syndrome (VWS) critical region is a relatively rare event, and only a few cases have been reported in the medical literature. The extent of the deletion and the genotype-phenotype correlation are 2 crucial issues.
Diprosopus or duplication of the lower lip and mandible is a very rare congenital anomaly. We report this unusual case occurring in a girl who presented to our hospital at the age of 4 months. Surgery and problems related to this anomaly are discussed.