Hyperparathyroidism

Hyperparathyroidism is the effect of excess parathyroid hormone in the body. It can be primary, secondary, or tertiary. There are many characteristic imaging features, predominantly involving the skeletal system.

Hyperparathyroidism is supported biochemically by either an elevated serum parathyroid hormone level or an inappropriately normal level in the setting of hypercalcemia.

Hyperparathyroidism can occur in the context of the following conditions from parathyroid hyperplasia or less commonly multiple parathyroid adenomas 5:

Increased levels of the parathyroid hormone lead to increased osteoclastic activity. The resultant bone resorption produces cortical thinning (subperiosteal resorption) and osteopenia.

Findings in secondary (and tertiary) hyperparathyroidism are often associated with the osteosclerosis of renal osteodystrophy and the osteomalacia of vitamin D deficiency:

Article information

rID: 1477
Synonyms or Alternate Spellings:
  • Secondary hyperparathyroidism
  • Primary hyperparathyroidism
  • Hyperparathyroidism: general
  • Tertiary hyperparathyroidism

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Cases and figures

  • Case 1: rugger-jersey spine
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  • Case 2: subperiosteal resorption
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  • Case 3: brown tumors
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  • Case 4: "salt and pepper" skull
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  • Case 5: tuft erosions and subperiosteal resorption
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  • Case 6: dens erosion from hyperparathyroisdism
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  • Case 7 : subperiosteal resorption
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  • Case 8: 'salt and pepper' skull
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  • Case 9: bone scintigraphy
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  • Case 10: distal clavicular resorption
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  • Case 11: rugger jersey spine
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  • Case 12: secondary hyperparathyroisim
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