Where a brain tumor sits may matter more than how big it is
Original title: Peritumoral Edema and Subcortical Tumor Location in Glioblastoma Outcome Prediction: An Automated Analysis of Radiological and Topographical Features.
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 from people, not a new treatment.
The short version
Brain scans hint that tumor location may say more about survival than tumor size.
What was studied. Researchers looked back at brain scans from 271 people with glioblastoma: The fastest-growing type of glioma (grade 4). Treatment usually starts soon after diagnosis: surgery first, then radiation and chemotherapy. See the glossary. A computer measured the tumor, the swelling around it, and where the tumor sat.
What they found. Tumor size and the amount of swelling did not line up with how long people lived. Older age did line up with shorter survival. Tumors in two deep, central spots in the brain were also tied to shorter survival.
What this means, and what it doesn't
What it could mean: Where a tumor grows may help doctors think about how the illness will go. Over time, this kind of brain map might help with planning care. It does not change treatment today.
What it doesn't mean: This is not a treatment, and it is not a cure. The study only looked back at old scans from one group of people. Other studies need to check these results first. Tumor location alone cannot tell one person how long they will live.
Source: PubMed, July 27, 2026 · Read the original
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