The shape of dead tissue on brain scans may hint at outlook
Original title: Imaging patterns of necrosis after treatment with chemoradiation are prognostic for survival in glioblastoma.
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 new treatment.
The short version
How dead tissue looks inside a glioblastoma: A glioma that is given grade 4, the highest grade. It grows fast. Treatment usually starts soon after it is found. It often means surgery, then radiation and chemotherapy. See the glossary may signal how the illness will go.
What was studied. Doctors looked back at MRI scans from 82 people with glioblastoma: A glioma that is given grade 4, the highest grade. It grows fast. Treatment usually starts soon after it is found. It often means surgery, then radiation and chemotherapy. See the glossary. Each person had already finished chemotherapy and radiation. The team measured the shape of the dead tissue inside the tumor.
What they found. Some scans showed the dead tissue in one solid patch with smooth edges. Other scans showed it broken into scattered pieces. People with the solid, smooth pattern had a much lower risk of dying. That stayed true after the team accounted for tumor size, age, MGMT promoter methylation: MGMT is a gene whose protein repairs damage to a tumor's DNA. Methylation turns it down. Your report says how much, and your team uses that when they choose chemotherapy. The line between high and low is not settled. See the glossary status, and how well people were getting through the day.
What this means, and what it doesn't
What it could mean: The look of dead tissue on a normal MRI may carry useful information. In time, it could help doctors sort out who needs closer watching after treatment.
What it doesn't mean: This is not a treatment, and it is not a cure. It does not change anyone's care today. The team looked back at scans that were already taken, which is an early kind of study. The pattern cannot tell one person how long they will live. Much more work is needed before doctors use this.
Source: PubMed, September 29, 2026 · Read the original
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