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Peripheral enthesopathy in diffuse idiopathic skeletal hyperostosis (DISH): a radiologic study
The Journal of Rheumatology
|July 1, 1982
Summary
New bone formation is common in peripheral entheseal regions of patients with diffuse idiopathic skeletal hyperostosis (DISH). The posterior heel is a particularly useful site for diagnosing DISH.
Area of Science:
- Orthopedics
- Rheumatology
- Radiology
Background:
- Diffuse idiopathic skeletal hyperostosis (DISH) is a condition characterized by abnormal bone growth.
- Diagnosis often relies on spinal findings, but peripheral manifestations are increasingly recognized.
Purpose of the Study:
- To investigate the prevalence and characteristics of new bone formation at peripheral entheseal sites in patients with axial DISH.
- To evaluate the utility of these peripheral sites for DISH diagnosis.
Main Methods:
- Radiographic examination of peripheral entheseal regions (tibial spines, heel, patella, olecranon) in 32 patients with axial DISH.
- Assessment for the presence and characteristics of new bone formation.
Main Results:
- High prevalence of entheseal new bone: 98% tibial spines, 91% posterior heel, ~80% superior patella, olecranon, and inferior heel.
- New bone exhibited well-defined cortical margins without inflammatory signs.
Conclusions:
- Peripheral entheseal regions, especially the posterior heel, show high rates of new bone formation in DISH.
- These accessible sites may aid in expanding diagnostic criteria for diffuse idiopathic skeletal hyperostosis.