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Pheochromocytoma is a tumor of the adrenal gland that causes excess release of epinephrine and norepinephrine, hormones that regulate heart rate and blood pressure.
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Pheochromocytoma is a tumor of special cells (called chromaffin cells), most often found in the middle of the adrenal gland. Because pheochromocytomas arise from chromaffin cells, they are occasionally called chromaffin tumors.
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Pheochromocytoma is a tumor of special cells (called chromaffin cells), most often found in the middle of the adrenal gland. Because pheochromocytomas arise from chromaffin cells, they are occasionally called chromaffin tumors.
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