Hepatic adenoma is usually detected by imaging, typically an ultrasound or CT, as a hyperenhancing liver nodule. Given that several liver tumors appear similarly on these imaging modalities, a multi-phase contrast-enhanced imaging study such as CT or MRI may be used to provide more information.
Hepatic adenoma detection relies on imaging techniques such as ultrasound and CT scans, which often show hyperenhancing nodules.  A multi-phase contrast-enhanced imaging study, like CT or MRI, can be used to further differentiate between hepatic adenomas and other liver tumors.