Of urinary vanilla picric acid, the normal value is 2 to 6 mg/24h urine. In order to confirm the presence of pheochromocytoma in the patient, laboratory tests for this indicator can be performed. A significant increase in urinary vanilla amygdalin during a flare-up of the disease suggests the presence of pheochromocytoma in the patient. Pheochromocytoma is 90% benign and has a good prognosis after surgical resection, in the clinic the drugs of choice are often a and beta-blockers. In addition to laboratory tests, the site of pheochromocytoma can be determined by combining with imaging tests such as adrenal ct or magnetic resonance.