Which imaging test is used to confirm the presence of hypercortisolism?

The correct choice for confirming the presence of hypercortisolism is an MRI. This imaging test is particularly useful for visualizing the adrenal glands, where cortisol is produced, as well as for detecting any tumors or abnormalities in the pituitary gland that could be causing excess cortisol production.

MRI is high in resolution and provides detailed images of soft tissues, making it more effective than other imaging modalities for assessing endocrine disorders. In cases of hypercortisolism, pituitary adenomas, which are responsible for Cushing's disease, can be evaluated with MRI to establish a diagnosis. Other imaging tests may be used in the diagnostic process, but MRI is preferred for its clarity and detail in identifying issues associated with hypercortisolism.