Use the drop-down menus to complete each sentence. A physician who suspects a patient has renal cancer may take a kidney to observe the kidney tissue directly. If a patient has bladder cancer, the cancerous tissue may be removed by . If a patient is suspected to have a mass or other problems in the ureter, it may be observed by . Overproduction of adrenaline and other hormones from the adrenal gland may require a(n) for treatment.