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What can a SINUS CT with IAC reveal?

A CT scan of your sinuses and IAC can reveal a great deal about your health. These detailed images allow your ENT to look for evidence of:

  • Chronic sinus disease
  • Acoustic neuroma
  • Nasal polyps
  • Deviated septum
  • Swollen turbinates
  • Sinus bone infection
  • Masses, tumors and cancer

What is the internal auditory canal?

Also known as the internal acoustic canal, the internal auditory canal (IAC) is a bony canal within the petrous section of the temporal bone. It’s responsible for transmitting nerves and vessels to the auditory and vestibular apparatus.

The following structures are inside the IAC:

  • Facial nerve
  • Vestibulocochlear nerve
  • Vestibular ganglion
  • Labyrinthine artery

Why do I need a CT scan of the IAC?

When acoustic neuromas expand, they fill the opening of the internal auditory canal. This compresses the cochlea and facial nerve, resulting in hearing loss and facial weakness. A CT scan of the area can quickly diagnose this issue so treatment can begin.

South Florida ENT Associates

What to expect from a CT Scan

When you arrive at the office for your CT scan, you will need to remove your glasses, earrings, hearing aids and any dental appliances. You will then lie down on a table with your head inside the CT scanner. While you lie still, the machine will move around your head and capture images. The actual test takes about five minutes, and your appointment should last no longer than 20 minutes.

Contact SFENTA Today

A CT scan of the sinuses and IAC can help your physician diagnose a wide range of ENT conditions. Contact SFENTA today to schedule an appointment.

- Most insurance plans accepted -

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