Presentation
End-stage renal disease with secondary hyperparathyroidism. CT done for pre-transplant work-up.
Patient Data
Sclerotic bands seen in the superior and inferior endplates of the visualized spine with relative band of lucency centrally giving rise to a striped appearance (rugger jersey spine).
Bilateral atrophic kidneys with tiny renal calculi. No hydronephrosis or hydroureter.
Case Discussion
The rugger jersey spine sign (which looks like stripes of a rugby jersey) is usually seen in secondary hyperparathyroidism due to excessive osteoid deposition at the vertebral endplates. This patient had renal osteodystrophy due to end-stage chronic kidney disease.
Similar appearance of the spine may be seen in patients with osteopetrosis, however the demarcation between the sclerotic and lucent bands are more well-defined, therefore being termed as "sandwich vertebrae".
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