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Frostnip
Involved area has local paresthesias that completely resolve with passive external rewarming
Distinct from frostbite in that ice crystals form on the skin but not within tissues and no tissue loss occurs
Chilblains
Skin lesions may be red or purple papular lesions, which are painful or pruritic, with burning or paresthesias
May be associated with edema or blistering and aggravated by warmth
With continued exposure, ulcerative or hemorrhagic lesions may appear and progress to scarring, fibrosis, and atrophy
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