[Adrenal incidentaloma: management approaches: CT - MRI].
The adrenal gland may be affected by several pathologies, and the detection of an adrenal nodule may occur during the work-up of a biological abnormality, oncologic work-up, or be incidental. Endocrinological and imaging work-up is required in all cases. Cross-sectional imaging has had a great impact on the diagnostic work-up of adrenal nodules. CT, without and with intravenous contrast, is the first line imaging study for evaluation of adrenal nodules. A spontaneous density below 10 HU confirms the benign nature of a nodule. When lesions cannot be characterized, postcontrast CT or MR imaging, including in and out of phase imaging, may allow diagnosis.
Hôpital Cochin, Service de Radiologie A, 27 rue du Faubourg Saint Jacques, 75679 Paris cedex 14, France. paul.legmann@cch.aphp.fr
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D000236:Adenoma / Q000175:diagnosis* / Q000000981:diagnostic imaging*; D000306:Adrenal Cortex Neoplasms / Q000175:diagnosis / Q000000981:diagnostic imaging; D000307:Adrenal Gland Diseases / Q000175:diagnosis* / Q000000981:diagnostic imaging*; D000310:Adrenal Gland Neoplasms / Q000175:diagnosis* / Q000000981:diagnostic imaging* / Q000473:pathology / Q000556:secondary; D000311:Adrenal Glands / Q000473:pathology; D000328:Adult; D000465:Algorithms; D001706:Biopsy; D003480:Cushing Syndrome / Q000175:diagnosis* / Q000000981:diagnostic imaging*; D003560:Cysts / Q000175:diagnosis / Q000000981:diagnostic imaging; D003937:Diagnosis, Differential; D005260:Female; D006391:Hemangioma / Q000175:diagnosis / Q000000981:diagnostic imaging; D006406:Hematoma / Q000175:diagnosis / Q000000981:diagnostic imaging; D006801:Humans; D033162:Incidental Findings; D008223:Lymphoma / Q000175:diagnosis / Q000000981:diagnostic imaging; D008279:Magnetic Resonance Imaging / Q000379:methods*; D010673:Pheochromocytoma / Q000175:diagnosis / Q000000981:diagnostic imaging; D012509:Sarcoma / Q000175:diagnosis / Q000000981:diagnostic imaging; D012512:Sarcoma, Ewing / Q000175:diagnosis* / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed / Q000379:methods*