Pheochromocytoma, a rare cancer, is a disease in which cancer (malignant) cells are found in special cells in the body called chromaffin cells. Most pheochromocytomas start inside the adrenal gland (the adrenal medulla) where most chromaffin cells are located. There are two adrenal glands, one above each kidney in the back of the upper abdomen. Cells in the adrenal glands make important hormones that help the body work properly. Usually pheochromocytoma affects only one adrenal gland. Pheochromo...

A small gland that produces steroid hormones, adrenaline, and noradrenaline, which help control heart rate, blood pressure, and other important body functions. There are two adrenal glands, one located on top of each kidney.

Pheochromocytoma as related to Adrenal Gland