A Case of Multiple Bullous Pyoderma Gangrenosum Lesions on the Face of a Patient with Ulcerative Colitis / 대한피부과학회지

ABSTRACT

Pyoderma gangrenosum (PG) is rare chronic painful ulcerative skin disorder usually associated with various systemic diseases, the most common of which is inflammatory bowel disease (IBD). PG shows a particularly stronger correlation with ulcerative colitis than Crohn's disease. It generally occurs at sites of trauma (pathergy), butspontaneous lesions with no evident trauma are not uncommon. PG is classified into four major clinical types: ulcerative, pustular, bullous, and vegetating. The ulcerative type is mostly associated with IBD. On the other hand, the bullous type is known to be associated with lymphoproliferative disorders. We report a rare case of PG of the bullous types forming multiple lesions on the face of a 21-year-old Korean woman with ulcerative colitis.