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Updated: Jul 9, 2026
12:23
Granulocyte-dependent Autoantibody-induced Skin Blistering
Published on: October 12, 2012
Wegener's granulomatosis presenting as pyoderma gangrenosum
Clara Boudny1, Helga Nievergelt, Lasse R Braathen
1Clinic and Polyclinic for Dermatology, Inselspital, University of Bern, Switzerland. clara.boudny@ksa.ch
Summary
Wegener
Area of Science:
- Rheumatology
- Dermatology
- Nephrology
- Ophthalmology
Background:
- Wegener's granulomatosis (WG) is a systemic vasculitis.
- Skin lesions occur in 50% of WG patients.
- Necrotic ulcers, including leg ulcers, can manifest as skin lesions in WG.
Observation:
- A case of Wegener's granulomatosis presenting as a necrotic leg ulcer is described.
- Histological examination of the ulcer margin was crucial for diagnosis.
- The patient had positive anti-neutrophil cytoplasmic antibodies with specificity for proteinase 3 (PR3-ANCA).
Findings:
- Diagnosis of Wegener's granulomatosis was confirmed.
- Ocular and renal involvement were identified.
- Rapid ulcer healing occurred with cyclophosphamide and corticosteroid treatment.
Implications:
- Wegener's granulomatosis should be considered in the differential diagnosis of necrotic ulcers.
- Skin biopsy with histological evaluation is vital for diagnosing WG presenting with skin lesions.
- Early diagnosis and treatment lead to favorable outcomes, preventing further organ damage.
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