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[[File:CT of adrenal adenoma.jpg|thumb|Axial slice of CT without contrast, showing an adenoma. It has low attenuation, and well-defined margins.]]
==Incidentalomas==
Adrenal masses discovered incidentally ("incidentalomas") have the following workup by Swedish national guidelines:<ref>{{cite web|url=http://www.sfmr.se/sidor/utredning-av-binjureincidentalom/|title=Utredning av binjureincidentalom (Workup of adrenal incidentalomas)|website=Swedish Society of Radiology}}</ref>
|colspan=3| Size < 1 cm ||rowspan=2| No radiologic workup needed (but biochemical screening may be indicated if clinical suspicion of being hormonally active)
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|rowspan=3| Size 1 to 4 cm ||colspan=2| Attenuation ≤10 HU(adenoma)
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|rowspan=2| Attenuation >10 HU || Without IV contrast || CT after 6 months, then stop if size is unchanged
