Pyoderma gangrenosum (PG) is an ulcerative inflammatory noninfectious disease of the skin. Treatment is mainly empirical, consisting of a combination of local and systemic treatments, including corticosteroids and immunosuppressive drugs. In many cases, PG is associated with an underlying disease, most commonly inflammatory bowel disease, occasionally in the stromal area. PG occurs in several hematological and malignant diseases.
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