Aliquot 1: Dermatologic Evaluation and Skin Necrosis

A 60-year-old man with atrial fibrillation presented with a painful, erythematous rash on his chest showing central necrosis. The distribution was dermatomal, leading to considerations of immune status, lesion characteristics, and systemic involvement. Factors like necrosis, rapid progression, and systemic symptoms were assessed to identify potential causes like VZV, necrotizing fasciitis, or an underlying bleeding syndrome.