In which of the following palpable purpura is not seen?
HSP
Scurvy
Mixed cryoglobulinema
ITP
ITP causes non palpable purpura. Palpable purpura is the hallmark lesion of leukocytoclastic vasculitis (small vessel vasculitis) Causes of palpable purpura: Vasculitis Cutaneous small vessel vasculitis PAN Emboli Acute meningococcemia Disseminated gonococcal infection Rocky mountain spotted fever Ecthyma gangrenosum Causes of non-palpable purpura: Clotting disturbances Vascular fragility Thrombi Emboli Possible immune complex