Article Text
Rare disease
The “fish-vertebra” sign
Summary
The “fish-vertebra” sign appears as biconcave lumbar vertebrae with bone softening in lateral and posterior–anterior radiographs of the spine as an exaggeration of the normal concavity of the superior and inferior surfaces of one or more vertebral bodies. This is due to ischaemia of the central growth plate of the spine, and is typically seen in sickle cell disease.
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Footnotes
Competing interests: None.