CTICasesRenal Osteodystrophy — Rugger Jersey Sign
Imaging findings
Lateral chest radiograph and abdominal CT in a hemodialysis patient demonstrate vertebral bodies with dense sclerotic endplates and central lucency representing subchondral bone resorption, producing a striped horizontal banding pattern (rugger jersey spine). The CT confirms the central lucency and smudgy trabecular pattern without sharp cortical margins, more pronounced compared to a CT from two years prior.
Key takeaways
The rugger jersey sign of renal osteodystrophy results from subperiosteal bone resorption causing sclerotic endplates flanking central bone resorption in vertebral bodies, creating a horizontal striped appearance analogous to a rugby jersey. This finding reflects secondary hyperparathyroidism from chronic renal failure and is most pronounced in the lumbar spine. It is now less commonly seen with improved dialysis management and phosphate control.
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