A seven-year-old male cat that was previously diagnosed with - and treated for - left hydronephrosis due to suspected idiopathic proteinaceous materials in the renal pelvis. presented with a short history of anorexia and vomiting. The abdominal ultrasound revealed bilateral hydronephrosis. and the intravenous pyelography showed a moderate amount of free fluid in the retroperitoneal sp... https://smokeaers.shop/product-category/steamrollers/