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Sacroiliitis in systemic lupus erythematosus
1Division of Arthritis and Rheumatic Diseases, Oregon Health Sciences University, Portland.
The Journal of Rheumatology
|January 1, 1994
Summary
Systemic lupus erythematosus (SLE) can present with sacroiliitis, a rare manifestation not solely dependent on genetic factors like HLA-DR3 or B27. This finding suggests sacroiliitis may occur as an infrequent symptom of SLE.
Area of Science:
- Rheumatology
- Immunology
- Radiology
Background:
- Systemic lupus erythematosus (SLE) is a chronic autoimmune disease with diverse clinical manifestations.
- Sacroiliitis, inflammation of the sacroiliac joints, is commonly associated with spondyloarthropathies but can rarely occur in SLE.
- The genetic associations, particularly HLA antigens, for sacroiliitis in SLE are not well-established.
Observation:
- A 19-year-old woman with severe SLE developed symptomatic sacroiliitis early in her disease course.
- Radiological evidence showed progression of sacroiliitis over a 14-year period.
- The patient was negative for both HLA-DR3 and HLA-B27 antigens.
Findings:
- The case demonstrates that sacroiliitis can be an infrequent manifestation of SLE.
- The absence of typical genetic markers (HLA-DR3, B27) suggests that factors beyond genetics may influence the development of sacroiliitis in SLE patients.
- The long-term radiological progression highlights the chronic nature of this manifestation.
Implications:
- This case challenges the notion that sacroiliitis in SLE is solely determined by genetic predisposition.
- It underscores the importance of considering sacroiliitis in the differential diagnosis of inflammatory back pain in SLE patients, even without typical genetic associations.
- Further research is needed to elucidate the specific mechanisms underlying sacroiliitis as a manifestation of SLE.