Pyoderma gangrenosum is an ulcerating disorder of the skin with sterile neutrophilic inflammation that may be seen in up to 5% of patients with chronic ulceration of the legs. 1 Typically painful, it ...

Pyoderma Gangrenosum in a Patient Pyoderma gangrenosum is an autoimmune disease of the skin that causes enlarging, painful ulcers with ragged, undermined, purplish borders.

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