Pyoderma gangrenosum occurring at multiple surgical incision sites.

Ten weeks after subtotal colectomy and ileostomy for ulcerative colitis, a 16-yr-old girl developed wound drainage and back pain. Massive ulceration and skin separation occurred at the abdominal wound incision as well as at the incision sites of a previous central venous line. A diagnosis of pyoderma gangrenosum was made. High-dose steroid treatment induced prompt healing of the abdominal wound as well as the catheter sites. Pyoderma gangrenosum has rarely been seen in surgical wounds. To our knowledge, this is the first reported case of pyoderma gangrenosum occurring simultaneously in multiple surgical incision sites in a patient with ulcerative colitis.