Cathy Thomas Hess, BSN, RN, CWOCN, is President, Wound Care Strategies, Inc, Harrisburg, PA. She is the Clinical Consultant for Advances in Skin & Wound Care and the author of Clinical Guide: Wound Care, 3rd edition, published by Springhouse. This article is adapted from Hess CT. Peristomal pyoderma gangrenosum. Nursing 2001 2001;31(7)68.