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Images 10.99.1A: Vasculitis, small vessel, neutrophilic; panniculitis, lobular; perivascular and interstitial dermatitis, and vesicular dermatitis, subepidermal + 10.99.1B: Thrombi in the lumen of venules and countless bacteria in the interstitium = Ecthyma gangrenosum ¬†Unlike septic vasculitides that are typified by transient episodes that recur over a period of months or years, as occurs in chronic […]