<prompt> Palpable purpura are seen in all EXCEPT:Giant cell aeritisHSPWegner granulomatosisPolyaeritis nodosa  <response>: Giant cell aeritis REF: Harrisons 18 ed chapter 53 table 54-16 Giant cell aeritis being a large vessel vasculitis does not cause any purpura CAUSES OF PURPURA: Palpable Non palpable Primary cutaneous Trauma disorder Solar purpura Steroid purpura Capillaritis Livedoid vasculopathy Systemic disorder Vasculitis Vascular fragility Cutaneous small-vessel Amyloidosis vasculitis Henoch-Schanlein Ehlers-Danlos syndrome purpura, Acute hemorrhagic Scurvy edema of infancy, Uicarial Thrombi vasculitis, Cryoglobulinemic DIC vasculitis, Erythema elevatum Monoclonal cryoglobulinemia diutinum, Granuloma faciale TTP Polyaeritis nodosa Warfarin reaction Emboli Emboli Acute meningococcemia Cholesterol Disseminated gonococcal Fat infection Possible immune complex Rocky Mountain spotted fever Gardner-Diamond syndrome Ecthyma gangrenosum autoerythrocyte sensitivity Waldenstroms hypergammaglobulinemic purpura Clotting disturbances ITP Abnormal platelet function Clotting factor defects 