• Ann Urol · Oct 2003

    Review

    [Characterization of adrenal incidentaloma discovered with tomography. General review].

    • M A Gomez, M Besson, R Roger, B Scotto, and D Alison.
    • Département de radiologie, hôpital Trousseau, centre hospitalier universitaire Tours, 37044 Tours, France. magomez@caramail.com
    • Ann Urol. 2003 Oct 1; 37 (5): 244-7.

    AbstractThe detection of an incidentaloma at abdominal Computed Tomography (CT), except CT features that permit a specific diagnosis (hemorrhage, myelolipoma or cyst), become a problem to differentiate adenomas from "non adenomas" (primary or secondary malignancy) incidentalomas. A density of ten Hounsfield units or less with a nonenhanced CT is a feature of benign incidentaloma (essentially lipid-rich adrenal adenomas). There are two limitations of this characterization: incidentalomas initially detected at enhanced CT and lipid-poor adrenal adenomas. The relative enhancement washout on enhanced CT, by using a threshold of 50% washout, permit then to characterized as adenomas or "non adenomas" incidentalomas on a 10-minute-delayed enhanced CT. Limitations of this characterization are only for benign pheochromocytomas and atypical adrenal cortical carcinomas.

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