Tectal gliomas that look low grade stayed stable for years on MRI
Original title: Tectal gliomas with "low-grade appearance": Natural history on MR imaging.
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 watched people who were already being treated, so it is not a new treatment.
The short version
In this small study, most of these brain tumors did not grow over many years of scans.
What was studied. Doctors looked back at records from one hospital for patients treated between 2010 and 2023. Twenty patients had a tectal glioma: A tumor that starts in the glial cells, the support cells of the brain and spinal cord. Gliomas are graded 1 to 4 by how fast they tend to grow. See the glossary that looked low grade on MRI. The team measured each tumor's size on scans over time.
What they found. Headache was the most common reason for the first scan (60%). Twelve patients (60%) needed a procedure to drain spinal fluid because of fluid buildup in the brain when they were diagnosed. Only 1 patient had tumor growth, and the increase was small over 12.8 years of follow up. On the scans, no tumor turned into a faster growing type.
What this means, and what it doesn't
What it could mean: If your tumor looks low grade on MRI, it may stay about the same size for a long time. Treatment aimed at the tumor itself may not be needed. The main problem to watch for is fluid buildup in the brain, which can be treated. Regular MRI scans are still important.
What it doesn't mean: This does not mean the tumor is gone or cured. This was a look back at old records from only twenty people at one hospital. It was not a test of any new treatment. Some tumors can still grow, which is why scans keep going. What is right for you depends on your own scans and symptoms, so talk with your doctor.
Source: PubMed, February 19, 2026 · Read the original
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