<prompt> Which of the following is not true about Bergers disease?The pathological changes are proliferative and usually confined to mesangial cellsHematuria may be gross or microscopicOn immunofluorescence deposits contain with IgA and IgGAbsence of associated proteinuria is pathognomic  <response>: Bergers disease IgA nephropathy Frequent cause of gross or microscopic hematuria. Mild proteinuria is frequently present Occassionally nephrotic syndrome may develop. 