Palpable purpura

Synonym(s)

palpable purpura

Definition
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Descriptive term for a haemorrhagic exanthema with palpable single florescences. Palpable purpura is to be distinguished from macular purpura, where palpability is not detectable when stroking with closed eyes.

Differential diagnosis
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Imune complex vasculitis: IgA1 vasculitis, IgG/IgM vasculitis, urticarial vasculitis, cryoglobulinemic vasculitis, vasculitis in collagenosis, initial erythema elevatum et diutinum
ANCA-associated vasculitis
Non-vasculitic haemorrhagic exanthema: Haemorrhagic drug exanthema, pityriasis lichenoides acuta, Purpura pigmentosa progressive