What does “Ligamentum flavum hypertrophy” mean on a radiology report?
Thickening of the ligament that runs along the back of the spinal canal. Common with age, and one of the things that can narrow the canal.
How "Ligamentum flavum hypertrophy" is used in radiology reports
The ligamentum flavum is an elastic ligament that connects the back parts of neighbouring vertebrae, forming part of the back wall of the spinal canal. With age and disc degeneration it tends to thicken and fold inwards. Radiologists call that thickening hypertrophy (or sometimes "buckling", when it folds because the disc space has narrowed).
On its own it is a common degenerative finding on lumbar and cervical spine MRI. It matters mainly in combination: together with a disc bulge in front and enlarged facet joints at the sides, a thickened ligamentum flavum behind can narrow the central spinal canal. That combination is a common cause of lumbar spinal stenosis, which can cause leg pain or heaviness on walking that eases with sitting or bending forward.
The report usually describes the overall effect at each level — for example, "mild central canal stenosis due to a disc bulge and ligamentum flavum hypertrophy". It is the degree of narrowing, matched to symptoms, that your doctor uses, rather than the ligament finding by itself.
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General explanations of common wording, not advice about your own scan. Ask the doctor who ordered it what your results mean for you.
Does this mean something is wrong?
Not on its own. A radiology report describes what the images show, in language written for the doctor who ordered the scan. One term is rarely the whole picture — what it means for you depends on why you were scanned and what else the report says.
If the report worries you, the person who can actually answer that is the doctor who referred you. Understanding the words first usually makes that conversation a better one.
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Other finding terms
- Air-fluid levelA horizontal line seen on imaging where air and fluid meet, often in abnormal collections.
- CalcificationCalcium deposits in tissue. Can be normal (aging) or indicate old injury, infection, or other conditions.
- CavityAn abnormal hollow space within tissue, often caused by infection or tissue death.
- ConsolidationArea of lung filled with fluid or solid material instead of air, usually from pneumonia.
- CystA fluid-filled sac. Usually benign and often harmless.
- EdemaSwelling from fluid buildup in tissues.
This explains a term as it is commonly used in radiology reports. It is not a diagnosis and not medical advice. Discuss your own results with your doctor.