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Fontanelle and uncinate process in the lateral wall of the human nasal cavity

 J H Yoon  ;  K S Kim  ;  D H Jung  ;  S S Kim  ;  K S Koh  ;  C S Oh  ;  H J Kim  ;  J G Lee  ;  I H Chung 
 LARYNGOSCOPE, Vol.110(2 Pt 1) : 281-285, 2000-02 
Journal Title
Issue Date
Adult ; Ethmoid Bone / anatomy & histology* ; Humans ; Nasal Cavity / anatomy & histology* ; Skull / anatomy & histology*
Objectives: Although a complete anatomic knowledge of the fontanelle is a prerequisite to perform a surgical antrostomy opening, little is known about the boundary, shape, and size of the fontanelle. The purpose of this paper is to determine the best site for maintaining the patency of a surgical antrostomy opening by defining the anatomic boundaries, shape, and size of the fontanelle as well as its histological structure. Materials and methods: One hundred sagittally divided heads were utilized. Mucosa overlying the lateral nasal wall was carefully removed with an operating microscope under 6x magnification. In some cases, a double mucous membrane, including the posteroinferior portion of the uncinate process, was cut as a whole and embedded in paraffin. The sections were stained with H&E. Results: The boundary of the fontanelle and the location of the natural ostium were described in detail. Eight patterns of the posteroinferior portion of the uncinate process were observed. There were three major fontanelle shapes when observed from the medial aspect to the lateral: triangular, pencil-like, and oval. The triangular type was the most common. The anterior portion of the fontanelle was shorter than the posterior when observed medially and was wider than the posterior portion when observed inferiorly. Conclusions: The anterior portion of the fontanelle is more prone to stenosis than the posterior portion. An antrostomy in the posterior fontanelle may be more ideal for a middle meatal antrostomy of the maxillary sinus.
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2. College of Dentistry (치과대학) > Dept. of Oral Biology (구강생물학교실) > 1. Journal Papers
Yonsei Authors
Kim, Hee Jin(김희진) ORCID logo https://orcid.org/0000-0002-1139-6261
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