General Medicine General bca5b312 A 46-year-old man has mild renal failure and hypeension which is proving difficult to manage. CT scan shows both a small adrenal tumor and bilateral hyperplasia. Which of the following is the best test to make a definitive diagnosis? A Dexamethasone suppression test B NP-59 adrenal scintigraph C Adrenal MRI D Selective adrenal vein sampling