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Choanal Atresia

A congenital abnormality that is characterized by a blocked CHOANAE, the opening between the nose and the NASOPHARYNX. Blockage can be unilateral or bilateral; bony or membranous.

Year introduced: 1986

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Tree Number(s): C08.460.171, C08.695.271, C09.603.171, C16.131.740.271

MeSH Unique ID: D002754

Entry Terms:

  • Atresia, Choanal
  • Atresias, Choanal
  • Choanal Atresias

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