[A case report of a true median cleft of the upper lip with a pedunculated median skin-mucosa mass].

The Authors report an unusual case of median cleft of the upper lip with pedunculated skin and muscle contracting mass. About one hundred cases of true median cleft lip have been reported, only six showing a median pedunculated mass. As the embryogenesis of this malformation is still not completely clear, we think that any case with this characteristic has to be described. Besides the usual characteristic of the median "hare lip" this case shows a big egg-like pedunculated mass in which muscular tissue has been found well represented, and a wide incomplete maxillary cleft.