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What is 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: and explain in detail?
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.