Hi all, I was emailing someone in breed rescue, and she told me her dog had similar symptoms to Casey but that it turned out to be PSOM, which of course I HOPE is what she has ILO SM. But she DID NOT have an MRI. The vet put her under, and used a special scope to look all the way into her ear and saw the drum was bulging. Then did the surgery and removed a 6" piece of goo. I thought PSOM was only diagnosable with an MRI? ANyone know about these other ways of diagnosing?