%0 Case Reports %T Non-surgical Management of Complex Refractory Pyoderma Gangrenosum With Negative Pressure Wound Therapy With Instillation. %A Lee FG %A Song E %A Wallace SJ %A Shaughnessy TJ %A Raj M %A Teixeira R %A Miles MG %A Wojcik R %J Cureus %V 13 %N 10 %D Oct 2021 %M 34815898 暂无%R 10.7759/cureus.18951 %X Pyoderma gangrenosum (PG) is a rare skin disorder primarily treated with immunosuppression medication. We report a case of a large, chronic PG wound treated with adjunct negative pressure wound therapy with instillation and dwell time (NPWTi-d) using nonadherent dressing (Mepitel) and reticular open-cell foam with through holes (ROCF-CC) with positive outcomes. The patient was a 62-year-old female with rheumatoid arthritis, Hashimoto's thyroiditis, lymphedema, and morbid obesity who presented with a 19.5 cm x 13.2 cm x 2.1 cm wound of three years duration on the right posterolateral lower extremity that successfully responded to a multimodality approach of immunosuppression and wound vac therapy. We conclude in our case that NPWTi-d with Mepitel and ROCF-CC enhanced the wound healing process, and we discuss NPWTi-d's potential role and benefit as an adjunctive therapy option for chronic and poorly controlled PG on patients taking concurrent immunosuppression.