Adrenocortical carcinoma is cancer of the adrenal cortex. The adrenal glands are two glands located just above each kidney. The glands produce important hormones. These hormones regulate heart rate, blood pressure, and many other vital functions, including response to stress and infection. The adrenal cortex is the outside layer of the two adrenal glands.

Cancers of the adrenal cortex are rare. The majority of these tumors produce excess hormones. The excess hormones can change hormonal balance.

Anatomy of the Adrenal Glands
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The cause is unknown.