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What kind of tumor is an adrenal incidentaloma?

Adrenal incidentalomas can be functioning (make too much hormone) or non-functioning, and they can be benign or malignant. The majority are non-functioning, benign tumors. Functioning tumors include aldosterone-producing adenoma, cortisol-producing tumor (Cushing's syndrome), virilizing tumor (androgen-producing tumor), paraganglioma, and pheochromocytoma (adrenaline producing tumor). Malignant tumors include adrenocortical cancer and metastatic disease. Benign, non-functioning tumors include adenoma, myelolipoma, ganglioneuroma, adrenal cyst, and hematoma. 

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.