All of the following conditions are associated with palpable purpura, EXCEPT:
Differential diagnosis of palpable purpura includes Henoch-Schonlein purpura (HSP), cryoglobulinemia or cryofibrinogenemia, polyaeritis nodosa (PAN), Wegener's granulomatosis, infections, and collagen vascular disorders. Giant cell aeritis being a large vessel vasculitis does not cause any purpura.
Giant cell aeritis
Henoch Schonlein Purpura
Wegner granulomatosis
Polyaeritis nodosa