Some adenomas produce too much adrenal steroid hormones. Sometimes the excess hormone can cause symptoms. Many of the hormone-related symptoms of adenomas are the same as those from adrenal carcinomas (cancers). These symptoms are discussed in the sections, “Can adrenal cancer be found early?” and “How is adrenal cancer diagnosed?” Adenomas are much more likely than carcinomas to produce high levels of aldosterone, which can cause high blood pressure. Treatment: Adenomas can be cured by removing the adrenal gland that contains the adenoma. Some adrenal adenomas that cause hormone-related symptoms can be treated effectively with medications that block the.