Urate deposits in the kidneys: Urate deposits in the different viscera are due to, generally, a renal failure by different causes such as the obstruction of the ureters, dehydration, or direct nephrotoxicity by mycotoxins or infectious agents. In the case of this picture, the renal failure is caused by nephrotoxic strains of the infectious bronchitis virus, which decrease the kidneys’ capacity to eliminate uric acid, which in turn accumulates as urates in the different viscera as well as the kidneys.