Granulomatous and suppurative dermatitis at interferon alfa injection sites: report of 2 cases.
case_report · Level V
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Abstract
It has previously been reported that interferon alfa injection sites may develop pyoderma gangrenosum, interface dermatitis, vasculitis, or, more commonly, ulcers characterized by intravascular thrombi and a mixed inflammatory cell infiltrate. We describe 2 patients in whom granulomatous and suppurative dermatitis developed at interferon alfa injection sites. These cases extend the spectrum of interferon alfa injection site reactions. The histologic and clinical similarities of these cases with pyoderma gangrenosum and cutaneous Crohn's disease are explored.
Medical subject headings
- Granuloma
- Injections, Subcutaneous
- Interferon-alpha
- Skin Diseases