Read over sons old mri results. it said moderate right & mild left mastoid disease airspace disease. what does it mean? the doc didn't explain it.

Mastoid sinuses: The mastoids are sinuses in the bone behind the ear. They can become seriously infected, causing pain and swelling behind the ear. This is often due to a chronic ear infection and may need surgery. It is common to see old signs of past sinus infection or swelling in sinuses on mri's or ct's. If the child is well, nothing needs to be done.

How old at the time?: The mastoid air cells start developing after a year of age and are fluid filled in early infancy. This is easily over-interpreted as mastoid infection when nothing more than benign middle ear fluid. Without a history of recurrent middle ear infections and painful swelling behind the ear, i would view it as an over interpretation by the radiologist.I have had it happen. Clarify with your doc.