The American Journal of dermatopathology
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Case Reports
Bullous Pyoderma Gangrenosum With Subungual Involvement Associated With Ulcerative Colitis.
Pyoderma gangrenosum (PG) is a rare inflammatory and ulcerative skin disease of unknown etiology characterized by neutrophilic infiltration of the dermis, mainly affecting the lower extremities. Bullous PG is a rare variant of this disease, usually associated with hematologic disorders. Here, we report a case of pathergy-positive bullous PG with subungual involvement associated with ulcerative colitis.