Acute focal nephritis

Acute focal nephritis in a cat diagnosed with non-effusive (dry) feline infectious peritonitis. The image on the left shows a decapsulated kidney, showing renal surface, which is irregular, punctuated with small pale nodules. A sagital cut of the organ, on the right, exhibits oedema and nodular lesions (corresponding to focal pyogranulomatous nephritis) that only affect the cortex.

design by R Noiva