Congenital midline sinus of the upper lip.
D002356:Cartilage / Q000473:pathology; D002675:Child, Preschool; D006801:Humans; D007742:Labial Frenum / Q000002:abnormalities / Q000601:surgery; D008046:Lip / Q000002:abnormalities* / Q000473:pathology / Q000601:surgery; D008297:Male