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
[{'content': 'In which of the following palpable purpura is not seen? \nSelect and explain. \nA. HSP, B. Scurvy, C. Mixed cryoglobulinema, D. ITP', 'role': 'user'}, {'content': 'Answer: D \nExplanation: 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', 'role': 'assistant'}]