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Pathergic pyoderma gangrenosum in a venous ulcer
Paolo Rosina1, Stefano Cunego, Cristina Zambelli Franz
1Section of Dermatology and Venereology, Department of Biomedical and Surgical Science, University of Verona, Italy.
International Journal of Dermatology
|May 16, 2002
Summary
Pyoderma gangrenosum (PG) is a rare inflammatory skin disease. This case study highlights successful treatment of recurrent PG on leg ulcers using methylprednisolone, demonstrating its efficacy in managing this challenging condition.
Area of Science:
- Dermatology
- Immunology
Background:
- Pyoderma gangrenosum (PG) is a neutrophilic dermatosis often associated with underlying systemic conditions.
- Management of PG can be challenging, particularly when it complicates chronic leg ulcers.
Observation:
- A 74-year-old woman presented with pyoderma gangrenosum superimposed on a chronic venous leg ulcer.
- The patient had a history of benign monoclonal gammopathy and a previous traumatic PG treated with Cyclosporine A.
- The current PG lesion exhibited typical clinical and histological features of the disease.
Findings:
- Initial treatment of the venous ulcer with compression therapy was insufficient for the superimposed PG.
- Topical steroids provided temporary relief, but the PG recurred.
- Systemic methylprednisolone (50 mg/day) led to rapid healing of the PG, with successful maintenance on a low dose (5 mg/day) and no recurrence after discontinuation.
Implications:
- Systemic corticosteroids, such as methylprednisolone, are effective in treating severe or recurrent pyoderma gangrenosum.
- This case underscores the importance of considering and treating PG aggressively when it complicates chronic wounds.
- Further research into the pathogenesis of PG and its association with monoclonal gammopathies may reveal novel therapeutic targets.