What Does a Sinus CT Scan Show?

If your sinus symptoms aren't improving the way they should, your provider may recommend a CT scan to get a clearer picture of what's happening inside your sinuses. Unlike a standard nasal exam, a CT scan sees past the surface and into the bone and tissue structures a scope alone can't reach.

How a sinus CT scan works

A CT, or computed tomography, scan uses a series of X-ray images taken from different angles to build a detailed, cross-sectional view of your sinus cavities, nasal passages, and the surrounding bone. It's quick, painless, and typically takes just a few minutes — at Noel ENT this can often be done right in the office rather than requiring a separate imaging center visit.

What the images can reveal

● Inflammation or swelling deep within the sinus lining that isn't visible during a standard exam

● Fluid or mucus trapped in the sinus cavities

● Nasal polyps, including their size and exact location

● A deviated septum or other structural issues affecting airflow and drainage

● Blocked or narrowed drainage pathways between the sinuses

● In rare cases, growths or masses that need further evaluation

When is a CT scan needed?

A straightforward sinus infection usually doesn't require imaging — symptoms and a physical exam are enough. A CT scan becomes useful when sinus infections keep recurring, symptoms aren't responding to treatment, or your provider is considering a procedure like balloon sinuplasty or sinus surgery and needs a precise map of your anatomy beforehand.

Getting answers about your sinuses

A CT scan gives your provider the detail needed to stop guessing and start treating the actual problem, rather than cycling through antibiotics for symptoms that keep returning.

If your sinus symptoms have been dragging on without a clear answer, schedule an appointment with Noel ENT and let's find out what's really going on.

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