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': "A 5-year-old child presents with non-blanching purpura over the buttocks and lower limbs along with colicky abdominal pain. Fuher evaluation revealed deposition of IgA immune complexes. The most likely diagnosis is: \nSelect and explain. \nA. Henoch Shonlein Purpura, B. Kawasaki Disease, C. Wegner's Granulomatosis, D. Takayasu Disease", 'role': 'user'}, {'content': 'Answer: A \nExplanation: Answer is A (Henoch Shonlein Purpura): Presence of non-blanching palpable purpura (vasculitis of skin) and colicky abdominal pain (vasculitis of gastrointestinal tract) in a five-year-old child together with evidence of IgA deposition in immune complexes suggests the diagnosis of Henoch Scholein Purpura.', 'role': 'assistant'}]