Deep frostbite, with the first and second toes showing an ischemic eschar with well-demarcated borders and clearcut margins, and hemorrhagic bullae on the second toe, the third toe showing a clear bulla and surrounding erythema, and the fourth toe showing complete necrosis. (Used, with permission, from Dean SM, Satiani B, Abraham WT. Color Atlas and Synopsis of Vascular Diseases. McGraw-Hill, 2014.)
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