An MRI sign may point to cancer in the brain and spine lining
Original title: Bloomy Rind Sign in Leptomeningeal Carcinomatosis Associated with EGFR-Mutated Lung Adenocarcinoma.
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 write-up of two patients, not a tested treatment.
The short version
Doctors saw a pattern on MRI scans that may help spot cancer spread to the lining of the brain and spine.
What was studied. Doctors wrote up two people whose lung cancer had spread to the lining of the brain and spine. Both had a lung cancer with a change in a gene called EGFR, and doctors looked for a scan pattern called the bloomy rind sign.
What they found. In one person, the scan pattern got worse as a cancer protein in the spinal fluid went up. That protein was higher in the spinal fluid than in the blood, even though fluid tests never found cancer cells. In the other person, the sign showed up along with pressure in the head, and fluid tests did find cancer cells. Both people got worse even with treatment.
What this means, and what it doesn't
What it could mean: This scan pattern may help doctors suspect cancer in the lining sooner. That could matter most when spinal fluid tests come back clear but doctors still worry.
What it doesn't mean: This is not a treatment, and it is not a cure. It is a write-up of just two people, which is the earliest kind of report. It does not prove the sign is reliable. Doctors would need much larger studies before this changes everyday care. Both people in this report got worse despite treatment.
Source: PubMed, October 15, 2026 · Read the original
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