What is the role of CT scanning in the diagnosis of allergic rhinitis (hay fever)?

Updated: Dec 26, 2018
  • Author: Javed Sheikh, MD; Chief Editor: Michael A Kaliner, MD  more...
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Coronal CT scan images of the sinuses can be very helpful for evaluating acute or chronic sinusitis. In particular, obstruction of the ostiomeatal complex (a confluence of drainage channels from the sinuses) can be seen quite clearly. CT scanning may also help delineate polyps, turbinate swelling, septal abnormalities (eg, deviation), and bony abnormalities (eg, concha bullosa).

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