For those of you who are not familiar with nasal endoscopy, it is a simple officeprocedure in which a telescope is inserted into the nose to allow a close lookat the nasal cavity, all the way back to the eustachian tubes. (Of course, a numbing and decongesting agent is applied to the nose first so that this can be performed painlessly and quickly.
The differential diagnosis for nasal obstruction includes allergic rhinitis, rhinosinusitis, deviated septum, nasal valve collapse, nasal polyps, adenoid hypertrophy, rhinitis medicamentosa, choanal atresia, nasal tumors, and others.
Some of these problems occur quite commonly. In my practice, the most common causes of nasal obstruction include a deviated septum, also allergies and sinusitis. We’ll talk more about these common problems a little later.