A sugar scan may help show if a spinal cord spot is a tumor
Original title: Diagnostic Value of Spinal Cord Lesion Metabolism on [18F]FDG PET/CT for the Classification of Myelopathy.
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 real patients who already had the scan, but it has not been proven as a way to make the diagnosis.
The short version
A common scan called FDG PET/CT often lit up when a spinal cord spot was a tumor, and stayed quiet when it was swelling.
What was studied. Doctors looked back at the records of 106 patients who had a spot on the spinal cord and got an FDG PET/CT scan. Of those, 60 had swelling of the spinal cord, 20 had neurosarcoidosis, 10 had a tumor, and 16 had another cause.
What they found. The scan lit up in 80.0% of the people with a tumor. It lit up in 50.0% of the people with neurosarcoidosis. It lit up in only 23.3% of the people with swelling of the spinal cord. The scan was much weaker at telling swelling apart from neurosarcoidosis.
What this means, and what it doesn't
What it could mean: If you have a spot on your spinal cord, this scan may give your doctor one more clue about what is causing it. A bright spot points more toward a tumor. A quiet spot points more toward swelling. It is a clue, not an answer by itself.
What it doesn't mean: This is not a treatment. It is not a cure and it does not shrink or stop a tumor. This study looked back at past patient records, so it does not prove the scan works better than other tests. The scan was often wrong when telling two kinds of inflammation apart. Doctors still need scans, exams, and sometimes a biopsy to know what a spot really is.
Source: PubMed, July 1, 2026 · Read the original
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