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What is A 8 year old male had non blanching rashes over the shin and swelling of knee joint with haematuria and protein +. Microscopic analysis of his renal biopsy specimen is most likely to show ? and explain in detail?
Ans. is 'c' i.e., Mesangial deposits of IgA o This child has --> i) Rash ii) Ahritis (swelling of knee joint) iii) Haematuria o All these suggest the diagnosis of Henoch Schonlein purpura o HSP is characterized by deposition of IgA in the mesangium.