An unusual variation in the anatomy of the uncinate process in external dacryocystorhinostomy

Variations in the bony components of the nose are often encountered. One such variation was found in a 49-year-old male who had undergone conventional external dacryocystorhinostomy for adult onset nasolacrimal duct blockage. Intraoperatively, a thick bar of bone was seen beneath and parallel to the...

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Main Authors: Mehta Anjali, Puri Nitin
Format: Article
Language:English
Published: Wolters Kluwer Medknow Publications 2008-01-01
Series:Indian Journal of Ophthalmology
Subjects:
Online Access:http://www.ijo.in/article.asp?issn=0301-4738;year=2008;volume=56;issue=5;spage=413;epage=416;aulast=Mehta
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author Mehta Anjali
Puri Nitin
author_facet Mehta Anjali
Puri Nitin
author_sort Mehta Anjali
collection DOAJ
description Variations in the bony components of the nose are often encountered. One such variation was found in a 49-year-old male who had undergone conventional external dacryocystorhinostomy for adult onset nasolacrimal duct blockage. Intraoperatively, a thick bar of bone was seen beneath and parallel to the lacrimal sac fossa after a complete osteotomy had been made. Another osteotomy had to be fashioned in this bone to reach the nasal cavity. Postoperative 3D computed tomographic scan revealed the bone to be an anatomical variation of the uncinate process of the ethmoidal bone which was rather anteriorly placed, much thicker than usual, and attached to the nasal roof. The uncinate process is thin, curved and its anterior edge may frequently overlap some part of the lacrimal fossa. However, to our knowledge, the presence of such a large and thick uncinate process necessitating an additional large osteotomy has not been reported.
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spelling doaj.art-16fa719406fa40938e434223480d3c7d2022-12-21T21:14:20ZengWolters Kluwer Medknow PublicationsIndian Journal of Ophthalmology0301-47381998-36892008-01-01565413416An unusual variation in the anatomy of the uncinate process in external dacryocystorhinostomyMehta AnjaliPuri NitinVariations in the bony components of the nose are often encountered. One such variation was found in a 49-year-old male who had undergone conventional external dacryocystorhinostomy for adult onset nasolacrimal duct blockage. Intraoperatively, a thick bar of bone was seen beneath and parallel to the lacrimal sac fossa after a complete osteotomy had been made. Another osteotomy had to be fashioned in this bone to reach the nasal cavity. Postoperative 3D computed tomographic scan revealed the bone to be an anatomical variation of the uncinate process of the ethmoidal bone which was rather anteriorly placed, much thicker than usual, and attached to the nasal roof. The uncinate process is thin, curved and its anterior edge may frequently overlap some part of the lacrimal fossa. However, to our knowledge, the presence of such a large and thick uncinate process necessitating an additional large osteotomy has not been reported.http://www.ijo.in/article.asp?issn=0301-4738;year=2008;volume=56;issue=5;spage=413;epage=416;aulast=MehtaDacryocystorhinostomynasal bonesuncinate process
spellingShingle Mehta Anjali
Puri Nitin
An unusual variation in the anatomy of the uncinate process in external dacryocystorhinostomy
Indian Journal of Ophthalmology
Dacryocystorhinostomy
nasal bones
uncinate process
title An unusual variation in the anatomy of the uncinate process in external dacryocystorhinostomy
title_full An unusual variation in the anatomy of the uncinate process in external dacryocystorhinostomy
title_fullStr An unusual variation in the anatomy of the uncinate process in external dacryocystorhinostomy
title_full_unstemmed An unusual variation in the anatomy of the uncinate process in external dacryocystorhinostomy
title_short An unusual variation in the anatomy of the uncinate process in external dacryocystorhinostomy
title_sort unusual variation in the anatomy of the uncinate process in external dacryocystorhinostomy
topic Dacryocystorhinostomy
nasal bones
uncinate process
url http://www.ijo.in/article.asp?issn=0301-4738;year=2008;volume=56;issue=5;spage=413;epage=416;aulast=Mehta
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