Some meningiomas look unusual on brain scans
Original title: Unusual presentations of meningiomas: A case series.
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 seven patient cases, not a new treatment.
The short version
A scan can make a slow growing brain tumor look worse than it really is.
What was studied. Doctors looked back at seven meningioma cases from their teaching files. Each tumor was confirmed by testing the tissue under a microscope. They studied how odd these tumors looked on scans.
What they found. Meningiomas are the most common brain tumor. They make up 36% of nervous system tumors, and about 15% look unusual on scans. All seven tumors here were CNS WHO grade: A number from 1 to 4 for how a tumor is likely to behave. Since 2021 it is written in plain numbers, not Roman ones. Gene results can set it too. See the glossary 1, except one grade 2 tumor linked to past radiation. The scans looked aggressive, but that did not match the tissue grade.
What this means, and what it doesn't
What it could mean: An odd looking scan does not always mean a faster growing tumor. Doctors may still need a tissue test to know the real grade. Knowing these patterns can help your team avoid a wrong diagnosis.
What it doesn't mean: This is not a new treatment, and it is not a cure. It is a look back at seven past cases, not a trial. Seven cases is a very small number. It does not change the care you can get today. It is mainly a lesson for the doctors who read scans.
Source: PubMed, September 9, 2026 · Read the original
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