An incidentaloma is a radiological neologism to denote a lesion found incidentally and of dubious clinical significance. Although it can refer to any incidental lesion (e.g. pituitary 3, thyroid 4), it is most often used to denote an incidental adrenal lesion, which is commonly an adrenal adenoma 1. Colloquially, some radiologists use the term interchangeably with adrenal adenoma, although clearly its use in a report would be confusing, and should be avoided. Most incidentalomas are asymptomatic.

If an adrenal adenoma is found incidentally, please refer to the Management of incidental adrenal masses: American College of Radiology white paper.

The likelihood of an incidental adrenal lesion being malignant is most strongly determined by the presence or absence of a malignancy elsewhere. In cases where a malignancy is present up to 27% of incidental adrenal lesions represent adrenal metastases 6

Share article

Article information

rID: 10832
Synonyms or Alternate Spellings:
  • Incidental adrenal lesion

Support Radiopaedia and see fewer ads

Cases and figures

  • Drag
    Adrenal adenoma
    Drag here to reorder.
  • Updating… Please wait.

    Alert accept

    Error Unable to process the form. Check for errors and try again.

    Alert accept Thank you for updating your details.