A rare skull bone tumor that grew inward in one man
Original title: Primary intraosseous meningioma of the parasagittal region with continuous transcalvarial progression: illustrative case.
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 one patient, not a tested treatment.
The short version
Doctors describe one man whose rare tumor started in his skull bone and spread inside the skull.
What was studied. This is a report on one patient, a 74-year-old man on dialysis. He had trouble walking and thinking clearly, and his scans were followed for 2.5 years before surgery.
What they found. At first the tumor sat mostly in the skull bone, with a lump under the scalp. Over 2.5 years it spread inside the skull. A large vein at the top of the head was blocked, and blood found new paths. Tests showed a grade 1 meningioma, the slowest growing type, yet the tumor grew back to about 42 mm within 5 months after surgery.
What this means, and what it doesn't
What it could mean: Some meningiomas appear to start in the skull bone and then push inward. Knowing this pattern may help doctors make the right diagnosis, plan surgery, and watch closely afterward.
What it doesn't mean: This is one patient's story, not a study of a treatment. It does not test a new drug or therapy, and it is not a cure. One case cannot tell you how your own tumor will behave. Any care choices still belong with your own doctors.
Source: PubMed, October 26, 2026 · Read the original
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