<prompt> What is the most common histological type of nephritis seen in systemic lupus erythematosus SLE-MesangialFocal proliferativeDiffuse proliferativeMembranous  <response>: Harshmohan textbook of pathology 7th edition diffuse lupus nephritis seen in 35 to 60 . Mesangial proliferation lupus nephritis seen in 10 to 25 Focal lupus nephritis seen in 20 to 35. membraneous lupus nephritis seen in 10 to 15 cases.. 