A 8 years old male had non blanching rashes over the skin and swelling of knee joint with hematuria +++ and protein + in urine. Microscopic analysis of his renal biopsy specimen is most likely to show:
c. Mesangial deposits of IgA(Ref: Nelson's 20/e p 1612, Ghai 8/e p 632)The given case scenario (palpable purpura, arthritis, hematuria and proteinuria) suggests a diagnosis of Henoch Schonlein purpuraIn H.S. purpura and IgA nephropathy, IgA deposits are present in mesangium (by immunofluorescence)
Tubular necrosis
Visceral podocyte fusion
Mesangial deposits of IgA
Basement membrane thickening
Kidney