a 44-year-old male presents reporting a 45 lb weight gain over the past year physical examination reveals 280 lb 5 ft 11inches

a 44-year-old male presents reporting a 45 lb weight gain over the past year physical examination reveals 280 lb 5 ft 11inches male with central obesity physical exam reveals fat accumulation in the interscapular area and prominent vertical purple stripe on the abdomen fasting blood glucose is 208 mg/d l plasma levels of act and cortisol are increased compared to reference ranges. TSH levels are normal and overnight high dose dexamethasone test produces 75% suppression of cortisol levels this patient most likely has which of the following conditions? a. Addison’s disease b. acth independent cushions syndrome C. conn’s syndrome D Cushing’s disease