Peristomal pyoderma gangrenosum (PPG), an unusual variant of pyoderma gangrenosum, has been reported almost exclusively in patients with inflammatory bowel disease (IBD) and is frequently misdiagnosed. Abdominal cancer may also be associated.


Single or multiple ulcers about an ostomy site are typical.


Effective therapies included topical superpotent corticosteroids; intralesional injection of triamcinolone at the ulcer margin; topical cromolyn sodium; oral dapsone, prednisone, cyclosporine, mycophenolate mofetil; and intravenous infliximab. See pyoderma gangrenosum. Relocation of the stoma may be associated with a new ulceration and should be avoided. Trauma to the skin of a predisposed patient may elicit the pustules or ulcerations associated with pathergy.

It is not the intention of to provide specific medical advice, diagnosis or treatment. only intends to provide users with information regarding various medical conditions for educational purposes and will not provide specific medical advice. Information on is not intended as a substitute for seeking medical treatment and you should always seek the advice of a qualified healthcare provider for diagnosis and for answers to your individual questions. Information contained on should never cause you to disregard professional medical advice or delay seeking treatment. If you live in the United States and believe you are having a medical emergency call 911 immediately.