### Patient: Doctor, I've been experiencing severe pain and tenderness behind my ear. I also have a fever and I'm having trouble hearing. I think I have mastoiditis.
### Doctor: It's possible that you have mastoiditis. In order to confirm the diagnosis, we will need to perform several medical tests. First, we will do an X-ray computed tomography, also known as a Scan ct. We will also need to do an ophthalmologic and otologic diagnosis and treatment to check your eyes and ears. In addition to those, we may need to do a CAT scan of your head (Head ct) and Magnetic resonance imaging (Mri) to get a better view of your condition.