<prompt> 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 ?Henoch-Schonlein purpuraWegeners granulomatosisVasculitisKawasakis disease  <response>: Ans is a i.e., Henoch-Schonlein purpura 