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Banff category 1: NORMAL PANCREAS ALLOGRAFT defined as absent or insignificant inflammation not involving ducts, veins, arteries, or acini. There is no graft sclerosis. The fibrous component is limited to normal septa and its amount is proportional to the size of the enclosed structures (ducts and vessels). The acinar parenchyma shows no signs of atrophy or injury (Figures 109-1 to 109-5).
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Banff category 2: INDETERMINATE defined as septal inflammation that appears somehow active, but the overall features do not fulfill the criteria for mild T-cell–mediated acute rejection (Figure 109-6).
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