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Initial presentation (dusky purpuric papules over both lower limbs), (a and b) Small dusky red purpuric papules, (c–e) Photomicrographs depicting histopathological features of initial lower limb lesions; zones of necrobiotic collagen (black arrows) (c, H&E original magnification ×40), foci of dermal hemorrhage (d, H&E original magnification ×400) and interstitial histiocytes (e, H&E original magnification ×400).
