Figure 4

Decline of cortical perfusion (y-axis) from proximal to distal cortical layers (x-axis) is different in the various Banff classes for peritubular inflammation (no significant cortical peritubular inflammatory changes (PTC 0) to cortical peritubular capillary with >10 luminal inflammatory cells (PTC 3)). Cortical layers are p20: proximal 20% of the renal cortex peripheral to the medullary pyramids, p50: proximal 50%, d50: distal 50% and d20: outer 20% of the cortex.