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': "A 5-year old child presents with perivascul a r IgA deposition and neutrophilic. collection. There is erythematous rash on the lower limb and non-blanching purpura. Probable diagnosis is ? \nSelect and explain. \nA. Henoch-Schonlein purpura, B. Wegener's granulomatosis, C. Vasculitis, D. Kawasaki's disease", 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans is 'a' i.e., Henoch-Schonlein purpura", 'role': 'assistant'}]