Pyoderma Gangrenosum Simulating Necrotizing Fasciitis

Figure 1

Evolution of lesions in the right antecubital region. (A) A pustular, erythematous, and painful lesion that progressed quickly to ulceration and was circumscribed by an erythematous halo at the site of right antecubital venous puncture. (B) Increased injury refractory to antibiotics. (C) After nine days, the lesion evolved into an erythematous-infiltrated plaque with a hemorrhagic center followed by ulceration circumscribed by erythematous-violet shades of bullous satellite lesions.