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Agger nasi

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Title: Agger nasi  
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Subject: Inferior nasal concha, Maxillary sinus, Head and neck anatomy, Axial skeleton, Maxillary process of inferior nasal concha
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Agger nasi

The agger nasi (from agger meaning "mound or heap") is a small ridge on the lateral side of the nasal cavity. It is located midway at the anterior edge of the middle nasal concha, directly above the atrium of the middle meatus. It is formed by a mucous membrane that is covering the ethmoidal crest of the maxilla.

It is also called the nasoturbinal concha and the nasal ridge. An enlarged agger nasi cell may encroach the frontal recess area, constricting it and causing mechanical obstruction to frontal sinus drainage.

References

  • "Agger nasi", Stedman's Medical Dictionary, 27th ed. (2000). ISBN 0-683-40007-X

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