How often MRI scans find a vestibular schwannoma
Original title: Retrospective study of vestibular schwannoma in patients referred to MRI: prevalence and referral criteria.
How far along is this research?
- Lab cells
- Animals
- Review
- Tested in people
This was tested in people. That is the most reliable kind of research we share.
This was a look back at scans people already had, not a test of any treatment.
The short version
At one hospital, only 11 out of 600 MRI scans found this rare, non-cancerous ear nerve tumor.
What was studied. Researchers looked back at records from one university hospital, from July 2023 to August 2024. They reviewed 600 MRI scans and checked why each scan was ordered and what was found.
What they found. Of the 600 scans, 11 (1.8%) showed a vestibular schwannoma. Most scans were ordered by private ear, nose, and throat doctors (68.5%). The tumors that were found ranged from 6 mm to 23 mm, and two were larger than 20 mm, so surgery had to be considered. Hearing loss that was worse in one ear was the most common reason for a scan (80.8%), but no symptom, alone or with others, reliably showed who had a tumor.
What this means, and what it doesn't
What it could mean: If you have hearing loss in one ear and get an MRI, the odds are that no tumor will be found. Symptoms cannot tell your doctor for sure whether a tumor is there, so a scan is still how it gets checked. The authors say the rules for who gets sent for a scan could be made better.
What it doesn't mean: This does not mean you should skip a scan your doctor recommends. It does not test any treatment, and it is not a cure or a promise of one. This was a look back at old records at one hospital, so it shows what happened in that one place, not what will happen everywhere. It does not change the care you get today. Talk with your own doctor about your symptoms.
Source: PubMed, July 24, 2026 · Read the original
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