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Medical Forum / Diseases and Disorders / Sinusitis / January 2006Size of sinus openings
I'm curious as to the size range of the openings to a 'normal' maxillary, ethmoid and frontal sinus. Am I correct in assuming that most FESS procedures to open ostia will open them up 'more than normal'? > I'm curious as to the size range of the openings to a 'normal' > maxillary, ethmoid and frontal sinus. Roughly 2 millimeters in diameter. That's why thick infected mucus can't easily drain out of there. A bilateral maxillary antrostomy will widen out those openings to around 10 mm in diameter.  SignatureSteven D. Litvintchouk Email: sdlitvin@earthlinkNOSPAM.net Remove the NOSPAM before replying to me.
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