Lips,Cleft
《英文msh詞典》Lips,Cleft
[入口詞] Lips,Cleft
[主題詞] Cleft Lip
[英文釋義] Congenital defect in the upper lip where the maxillary prominence fails to merge with the merged medial nasal prominences. It is thought to be caused by faulty migration of the mesoderm in the head region.