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Cleft Lip

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.

Year introduced: 1965

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Tree Number(s): C07.465.409.225, C07.465.525.164, C07.650.525.164, C16.131.850.525.164

MeSH Unique ID: D002971

Entry Terms:

  • Cleft Lips
  • Lip, Cleft
  • Lips, Cleft
  • Harelip
  • Harelips

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