MRI scans may help tell three brain tumors apart
Original title: Qualitative MRI Features for Differentiating GBM, Solitary Brain Metastasis, and Primary CNS Lymphoma: A Retrospective Diagnostic Accuracy Study.
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 looked back at scans from real patients, but it is not a treatment and was not tested on new patients.
The short version
Doctors tested whether regular MRI scans can tell three kinds of brain tumor apart.
What was studied. Researchers looked back at brain MRI scans from 108 patients. 59 had glioblastoma: A glioma that is given grade 4. Grade 4 is the highest grade there is. The tumor grows fast. Treatment usually starts soon after it is found. It often means surgery, and then radiation and chemotherapy. See the glossary, 24 had a single tumor that spread from somewhere else, and 25 had lymphoma in the brain. Tissue samples confirmed each tumor type.
What they found. The three tumor types looked different on the scans. Lymphoma often lit up evenly and had smooth edges. glioblastoma: A glioma that is given grade 4. Grade 4 is the highest grade there is. The tumor grows fast. Treatment usually starts soon after it is found. It often means surgery, and then radiation and chemotherapy. See the glossary and spread tumors more often showed ring shapes, dead tissue, and bleeding. A step by step chart built from these clues got the right answer 80.6% of the time. It was right 83.3% of the time for glioblastoma, 86.1% for spread tumors, and 91.7% for lymphoma.
What this means, and what it doesn't
What it could mean: Plain MRI scans may give doctors an early clue about which tumor type a person has. That could help most in places without special scanning tools. A tissue sample is still what confirms the answer.
What it doesn't mean: This does not mean a scan can replace a tissue sample. The team looked back at old scans from one group of patients. The chart was not tried out on new patients. This is not a treatment and not a cure. It would need more testing before it changes everyday care.
Source: PubMed, January 1, 2026 · Read the original
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