I have contacted Dr. Bruce Williams, ferret expert veterinary pathologist who says this: >The amyloid can be confirmed with a Congo Red stain fairly easily - >and renal amyloid is uncommon (though not unheard of in ferrets.) >Pathologists not common with aging changes in ferret kidneys can easily >mistake senescent glomeruli for amyloidosis, so the use of a Congo red >stain is a difinite must. Additionally, I would want to see a clinical >proteinuria, as well as evidence of lots of protein accumulation in the >tubules. > >I would like to know more about whether a Congo red was done, and what >was the pattern of deposition of amyloid - glomerular, interstitial, >vascular, or just what. Hope that helps you and i hope that your Spring is lovely. [Posted in FML issue 4706]