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: Pediatrics
[{'content': 'The most common leukocytoclastic vasculitis affecting children is – \nSelect and explain. \nA. Takayasu disease, B. Mucocutaneous lymph node syndrome. (Kawasaki disease), C. Henoch Schonlein purpura, D. Polyarteritis nodosa', 'role': 'user'}, {'content': "Answer: C \nExplanation: Leucocytoclastic vasculitis-\n\nIt is a cutaneous acute vasculitis characterized clinically by palpable purpura especially of the legs and histologically by the presence of leucocytoclasts (Leucocytoclasts are nuclear debris of neutrophils)\n\nCauses of leucocytoclastic vasculitis: -\n\nDrug-induced vasculitis\xa0 \xa0\nHenoch schonlein purpura \xa0 \xa0\nSystemic lupus erythematosis \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0\nRheumatoid arthritis\xa0\xa0\xa0\xa0\nSjogren's syndrome \xa0\xa0\xa0\nEssential mixed cryoglobulinemia \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0\nSABE\xa0\xa0\xa0\xa0\nEBV infection\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\nHIV infection \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0\nChronic active hepatitis\xa0\xa0\xa0\xa0\xa0\xa0\nUlcerative colitis\xa0\xa0\xa0\xa0\nRetro peritoneal fibrosis \xa0 \xa0 \xa0 \xa0 \xa0 \xa0\xa0\nPrimary biliary cirrhosis", 'role': 'assistant'}]