Sinusitis
Signs and tests The doctor will examine you or your child for sinusitis by: Looking in the nose for signs of polyps Shining a light against the sinus (transillumination) for signs of inflammation Tapping over a sinus area to find infection Regular x-rays of the sinuses are not very accurate for diagnosing sinusitis. Viewing the sinuses through a fiberoptic scope (called nasal endoscopy or rhinoscopy) may help diagnose sinusitis. This is usually done by doctors who specialize in ear, nose, and throat problems (ENTs). However, these tests are not very sensitive at detecting sinusitis. A CT scan of the sinuses may also be used to help diagnose sinusitis or to evaluate the anatomy of the sinuses to determine whether surgery will...