Rugger-jersey spine

Rugger-jersey spine describes the prominent subendplate densities at multiple contiguous levels to produce an alternating sclerotic-lucent-sclerotic appearance. This simulates the transverse bands of a rugby jersey.

This term and pattern are distinctive for hyperparathyroidism.

Pathology

In response to increased bone resorption due to excess parathyroid hormone (PTH) secretion and subsequent loss of bone mass, osteoblasts form an increased amount of osteoid that does not contain hydroxyapatite but does appear opaque on radiographs. The sclerotic bands on the superior and inferior endplates of the vertebral bodies represent accumulations of excess osteoid and appear opaque because of their increased volume when compared to normal bone.

Differential diagnosis

Note: some authors use the term rugger jersey for osteopetrosis, although most would assume the term refers to hyperparathyroidism.

Inspired signs
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Article information

rID: 1999
Section: Signs
Synonyms or Alternate Spellings:
  • Rugger jersey sign
  • Rugby jersey sign
  • Rugger-jersey sign

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Cases and figures

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    Figure 1: with rugby jersey
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    Case 1
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    Rugger jersey spi...
    Case 2
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    Case 3
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    Case 4: on MRI
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    Case 5
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    Case 6
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