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 ?: (A) Henoch-Schonlein purpura, (B) Wegener's granulomatosis, (C) Vasculitis, (D) Kawasaki's disease
Answer is A. Ans is 'a' i.e., Henoch-Schonlein purpura