Diagnosis and Treatment Difficulty in Early-Onset Peristomal Pyoderma Gangrenosum Associated With Ulcerative Colitis: A Case Report.

Peristomal pyoderma gangrenosum (PPG) is a rare dermatological condition associated with gastroenterological disease. Most gastrointestinal surgeons find it difficult to suspect and treat PPG, especially at early onset. The patient was an 18-year-old female.