tokens: Thirteen biopsies were performed from stable functioning renal allografts with informed consent ( nonepisode biopsy ) and the other 13 were from dysfunctional renal allografts with a clinical indication for biopsy ( episode biopsy ). RESULTS : The main pathologic diagnoses ( some overlap ) were acute rejection ( AR ; n = 4 ), chronic rejection ( CR ; n = 5 ), AR + CR ( n = 4 ), recurrent IgA nephropathy ( n = 5 ), normal findings ( n = 2 ), minimal - type chronic FK506 nephropathy ( n = 9 ), and mild - type FK506 nephropathy ( n = 11 ). Of the nonepisode biopsies , 7 and 4 biopsies showed minimal - type and mild - type chronic FK506 nephropathy , respectively .