Related Experiment Videos
C1 inhibitor deficiency simulating systemic lupus erythematosus
The British Journal of Dermatology
|April 1, 1982
Summary
Hereditary angio-oedema was diagnosed in a woman with lupus-like skin lesions. Treatment with blood transfusion and steroids improved symptoms, despite unchanged complement levels.
Area of Science:
- Immunology
- Genetics
- Dermatology
Background:
- Systemic lupus erythematosus (SLE) can present with mucocutaneous manifestations.
- Hereditary angio-oedema (HAE) is a rare genetic disorder affecting complement regulation.
Observation:
- A 48-year-old Japanese woman presented with SLE-like skin and lip lesions.
- Initial investigations revealed low levels of complement components CH50, C1q, C4, and C1 inhibitor.
Findings:
- The patient was diagnosed with hereditary angio-oedema.
- Clinical improvement was observed after fresh normal human blood transfusion and betamethasone treatment.
- Crucially, complement component levels remained unchanged post-treatment.
Implications:
- This case highlights the importance of considering HAE in patients with lupus-like presentations.
- Treatment response in HAE may not always correlate with normalization of complement levels.
- Further research into HAE pathogenesis and treatment is warranted.