The patient is a female 62 years old, found high blood pressure for more than 20 years, taking 3 kinds of anti-hypertensive drugs, but poorly controlled, the highest blood pressure 210/110mmHg, found low blood potassium for more than 2 years, CT examination found right adrenal tumor, tumor size 5cmx3.5cmx3cm, considered adrenal adenoma, primary aldosteronism by systemic endocrine examination, resected by retroperitoneal laparoscopic surgery CT The right adrenal tumor seen by imaging The adrenal tumor seen by laparoscopic surgery 30 ml of intraoperative bleeding, the patient recovered well after surgery, the postoperative pathology report was adrenal adenoma, blood pressure returned to normal 1 week after surgery, and blood potassium returned to normal 1 month after surgery. Adrenal adenoma is usually not large and more than 4 cm is rare.