endocapillary proliferative glomerulonephritis endocapillary proliferative glomerulonephritis endocapillary proliferative glomerulonephritis is a form of glomerulonephritis that can be associated with nephritis. endocapillary proliferative glomerulonephritisrenal corpuscle showing glomerulus capillaries.specialtyurology it may be associated with parvovirus b19.