Histopathological findings of renal biopsies in cats and dogs with diffuse nephropathies generally lead to an exact diagnosis and facilitate prognostic judgements.
Complications following renal biopsy are usually slight, provided the biopsy is performed properly.
Routine renal laboratory data have been compared with histopathological findings. High urine protein values are often the result of glomerular lesions, whereas high creatinine values are frequently related to tubulointerstitial lesions.