serum rash


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se·rum rash

a cutaneous manifestation of serum sickness.

serum rash

A pruritic hivelike rash (urticaria or angioedema) or a vasculitis (palpable purpura) that accompanies serum sickness, usually caused by a hypersensitivity reaction to drugs or immune globulins obtained from animals. Malaise, joint pains, fevers, and other symptoms may accompany the rash.
See: serum sickness
See also: rash
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