dacryocystorhinostomy

dacryocystorhinostomy
An operation providing an anastomosis between the lacrimal sac and the nasal mucosa through an opening in the lacrimal bone. [dacryocyst + G. rhis (rhin-), nose, + stoma, mouth]

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dac·ryo·cys·to·rhi·nos·to·my -.sis-tə-.rī-'näs-tə-mē n, pl -mies surgical creation of a passage for drainage between the lacrimal sac and the nasal cavity

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n.
an operation to relieve blockage of the nasolacrimal duct (which drains tears into the nose), in which a communication is made between the lacrimal sac and the nose by removing the intervening bone. See dacryocystitis, lacrimal apparatus.

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dac·ryo·cys·to·rhi·nos·to·my (dak″re-o-sis″to-ri-nosґtə-me) [dacryocyst + rhino- + -stomy] surgical creation of a communication between the lacrimal sac and the nasal cavity; called also dacryorhinocystotomy.

Medical dictionary. 2011.

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