A 34-year-old woman came to a doctor with complaints of muscle weakness, thirst, increased urination at night, paresthesias, and seizure attacks. Objectively, her general condition is satisfactory, her face and legs are doughy, her pulse is 80 /min., her blood pressure is 200/110 mm Hg, the II heart is accentuated over the aorta. Complete blood count shows K levels of 3.1 mmol /L and Na levels of 165 mmol /L. ECG shows inversion of T waves and depression of S-T segments. Ultrasound detects hyperplasia of the right adrenal gland. What is the provisional diagnosis in this case?