This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
All of the following conditions are associated with palpable purpura, EXCEPT: 
Select and explain. 
A. Giant cell aeritis, B. Henoch Schonlein Purpura, C. Wegner granulomatosis, D. Polyaeritis nodosa
A: Giant cell aeritis
Answer: A: Giant cell aeritis 
Explanation: 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.