Glomerulus showing segmental occlusion of the capillary tufts by endocapillary hypercellularity. There is also mild podocyte hyperplasia and hypertrophy overlying area of endocapillary expansion. The lesion involves almost one third of the whole glomerulus. The lesion extends from the hilum to the tubular pole. The other half the glomerulus is unremarkable. (PAS, ×400).