Pyoderma gangrenosum
The erythematous and violaceous border typical of pyoderma gangrenosum above the knee
Keywords: Classic pyoderma gangrenosum, Erythema, Erythematous, Erythematous halo, Exudate, Inflammatory neutrophilic dermatosis, Leg, Multiple ulcers, Sensitive-image, Superior knee, Ulcerative pyoderma gangrenosum, Violaceous border
What is pyoderma gangrenosum?
Pyoderma gangrenosum (PG) presents as a rapidly enlarging, very painful ulcer. It is one of a group of autoinflammatory disorders known as neutrophilic dermatoses.
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Source: dermnetnz.org