Skin All of the following conditions are a differential diagnosis for Koebner Phenomenon, EXCEPT: A Lichen planus B Vitiligo C Pyoderma gangrenosum D Leukocytoclastic vasculitis 💡 Explanation All of the following conditions are a differential diagnosis for Koebner Phenomenon, EXCEPT: ✓ Correct Answer: C. Pyoderma gangrenosum