Acute hemorrhagic edema of young children is a skin limited small vessel leukocytoclastic vasculitis. The diagnosis is made on a clinical basis in subjects with following characteristics:
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Age ≤24 months
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Skin eruptions
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Lesions: violent onset of a) purpuric or ecchymotic target-like lesions and b) often tender non pitting edema
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Localization: cheeks, ears and extremities (with relative sparing of the trunk)
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Not-ill-appearing
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Prognosis: the disease spontaneously recovers in 1-2 weeks
Recommended reading (available on request): Lava SAG, Milani GP, Fossali EF, Simonetti GD, Agostoni C, Bianchetti MG. Cutaneous manifestations of small-vessel leukocytoclastic vasculitides in childhood. Clin Rev Allergy Immunol. 2017;53(3):439-451. doi: 10.1007/s12016-017-8626-3.
