An endoscopic sinus exam allows the doctor to see all the
structures inside the nose and the sinuses.
Before inserting the
endoscope, the passages inside the nose are opened up
with a decongestant medicine and numbed with an anesthetic. The endoscope is
guided up through a nostril and into the sinus opening, but it is not able to
be inserted into the sinus itself.
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passages are blocked or have an abnormal size or shape.
thick mucus is draining from a sinus opening.
polyps) or foreign bodies inside the nose are seen.
The partition between the nasal cavities is crooked (deviated nasal septum) and is causing obstruction.
What To Think About
An endoscopic sinus exam is the best method of examining the nasal
passages and sinus openings because it can detect small growths in the nose
(polyps) and other problems that may be missed by routine examination.
This information is produced and provided by the National
Institute (NCI). The information in this topic may have changed since it was written. For the most current information, contact the National
Institute via the Internet web site at http://
.gov or call 1-800-4-CANCER.
WebMD Medical Reference from Healthwise
September 12, 2012
This information is not intended to replace the advice of a doctor.
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