Immunoglobulin A nephropathy associated with acute hepatitis E infection: First case report.

In this case report, we describe a young male patient who presented with gross hematuria and nephrotic syndrome a few weeks after serologically positive acute hepatitis E virus (HEV) infection. Histopathological examination of renal core biopsy revealed that the majority of the viable glomeruli had a predominantly mesangiopathic process characterized by mild to moderate diffuse increase in mesangial matrix and cellularity with segmental variation. Immunofluorescence microscopy depicted a strong (3+) granular mesangial and capillary loop staining for IgA, consistent with IgA nephropathy (IgAN).