From the case:
Dens erosion - possible CPPD
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Erosion of the odontoid peg
From the case:
Dens erosion - possible CPPD
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Erosion of the odontoid peg in a patient without inflammatory arthritis or gout most likely represents CPPD.
Case Discussion
Erosion of the odontoid peg can result from a number of causes:
- inflammatory arthropathy
- crystal arthropathy
- calcium pyrophosphate arthropathy (CPPD): relatively common
- gout
- non-inflammatory arthropathy: osteoarthritis
- infective arthropathy
-
osteomyelitis
- bacterial
- tuberculosis
-
osteomyelitis
- metastases or primary bone tumor: rare
- hyperparathyroidism
- Down syndrome