Two Rare Tumors That Looked Like a Common Brain Tumor on Scans
Original title: Beyond the Usual Suspects: Atypical Dural-Based Tumors With Rare Histology and Intracranial Extension.
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 is a report on two patients, not a new treatment being tested.
The short version
Two men had tumors on the lining of the brain that looked like one kind of tumor on scans, but lab tests showed something else.
What was studied. Doctors reported two cases of tumors growing from the dura. The dura is the tough lining around the brain. In both cases, scans pointed to a meningioma.
What they found. The first man was 52. He had a painless swelling on his scalp, and his scan showed a mass on the dura that had worn into bone and spread outside the skull. Tests on the tumor tissue showed it was liver cancer that had spread there. The second man was 22 and had a large mass with parts both inside and outside the skull, and tissue tests showed it was Ewing sarcoma.
What this means, and what it doesn't
What it could mean: A tumor on the brain lining is not always a meningioma, even when the scan looks that way. Tests on the tumor tissue can change the diagnosis. That matters because the care is different. The report notes that liver cancer spread to the dura is rare and is usually treated to ease symptoms, while Ewing sarcoma is treated with surgery, chemotherapy, and radiation together.
What it doesn't mean: This does not mean there is a new treatment. It is a report on two patients, not a study that tested anything. It does not tell you what your own tumor is, and it does not change what your doctor should do for you. It is not a promise of a cure. If you have questions about your scan or your diagnosis, ask your own care team.
Source: PubMed, July 1, 2026 · Read the original
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