Many doctors won't dicuss scan reports over the phone. Often they require further dialog between the reading radiologist and the ENT or H&N surgeon. The scan is only a small part of the total diagnostic package anyway. The gold standard is actually the physical exam with the ENT (aka direct visualization).

None of my early MRI's (the entire first year) were very good but eventually all of the suspicious areas dissapeared. So they're probably being overly cautious and this is typical early on.

Try not to freak out.