TY - CHAP M1 - Book, Section TI - Chapter 174. Pyoderma Gangrenosum A1 - Usatine, Richard P. A1 - Smith, Mindy A. A1 - Chumley, Heidi S. A1 - Mayeaux, E.J. PY - 2013 T2 - The Color Atlas of Family Medicine, 2e AB - A 32-year-old man was diagnosed with Crohn disease 10 years prior to his visit for these nonhealing leg ulcers (Figure 174-1). The patient experienced minor trauma to his lower leg 1 year ago and these ulcers developed (pathergy). Multiple treatments have been tried with partial success, but the ulcers persist. SN - PB - The McGraw-Hill Companies CY - New York, NY Y2 - 2024/04/23 UR - accessmedicine.mhmedical.com/content.aspx?aid=57682009 ER -