Prenatal 3D sonography of an isolated lateral facial cleft.

Lateral facial cleft is a rare congenital anomaly, but all affected infants require surgery under general anesthesia. Conventional 2-dimensional coronal view of the face, which is typically used for identification of facial clefts, has limitations with regard to detection of this anomaly. We describe a case of prenatal diagnosis of isolated lateral facial cleft made with 3D sonography and highlight the importance of this tool in the diagnosis of this rare facial deformity.