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Complications in Paget disease at MR imaging
R D Boutin1, D J Spitz, J S Newman
1Department of Radiology, University of California, San Diego School of Medicine, USA.
Radiology
|December 9, 1998
Summary
Magnetic resonance (MR) imaging effectively detects Paget disease of bone complications like fractures, spinal stenosis, and neoplasms. MR imaging findings, particularly signal intensity similar to fat, can exclude secondary bone tumors.
Area of Science:
- Orthopedics
- Radiology
- Oncology
Background:
- Paget disease of bone is a chronic disorder characterized by abnormal bone remodeling.
- Complications can significantly impact patient morbidity.
Purpose of the Study:
- To evaluate the utility of magnetic resonance (MR) imaging in diagnosing complications of Paget disease of bone.
- To identify specific MR imaging findings associated with various complications.
Main Methods:
- Retrospective review of 33 patients with Paget disease and known complications.
- Analysis of imaging modalities including MR imaging, radiography, CT, and bone scintigraphy.
- Focus on musculoskeletal and neurological complications: fracture, basilar impression, spinal stenosis, neoplasm, osteoarthrosis.
Main Results:
- MR imaging demonstrated significant utility in diagnosing basilar impression, spinal stenosis, and neoplasms.
- Specific findings included pagetic bone signal intensity similar to fat, with a 100% negative predictive value for excluding neoplasm.
- MR imaging also identified impingement syndrome and rotator cuff rupture secondary to pagetic bone narrowing.
Conclusions:
- While radiography is cost-effective for Paget disease diagnosis, MR imaging excels in characterizing its complications.
- MR imaging is crucial for assessing basilar impression, spinal stenosis, and secondary neoplasms.
- Characteristic MR imaging findings aid in differentiating benign from malignant pagetic bone changes.