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Incidentaloma

Radswiki and Dr Frank Gaillard et al.

An incidentaloma is a radiological neologism to denote a mass 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.

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.