What tests can locate very small adrenal gland tumors?

When the adrenal glands appear normal or near-normal on CAT scan or MRI, nuclear medicine tests like an MIBG scan (metaiodobenzylguanidine scan) or PET scan (positron emission tomography scan) can be helpful. These tests use a weakly radioactive particle to home into the tumor so that it "lights up" on X-ray. The MIBG scan is specific for adrenaline-producing tumors while the PET scan identifies any very metabolically active tumors. Radioisotope scans may also be useful in detecting small paragangliomas, metastatic disease, and subtle areas of recurrent disease. They are also useful in screening patients with familial disorders where bilaterality and extra-adrenal pheochromocytomas (paragangliomas) are more common.


Continue Learning about Endocrine System

Endocrine System

Your endocrine system works with your nervous system to control important bodily functions. The endocrine systems responsibilities include regulating growth, sexual development and function, metabolism and mood. The endocrine syst...

em also helps give your body the energy it needs to function properly. Endocrine glands secrete hormones into the bloodstream. Hormones are considered chemical messengers, coordinating your body by transferring information from one set of cells to another. Your endocrine system health can be affected by hormone imbalances resulting from impaired glands. A hormone imbalance can cause problems with bodily growth, sexual development, metabolism and other bodily functions. Endocrine system diseases or conditions include diabetes, growth disorders and osteoporosis.

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.