| CT | computed tomography |
| MR | magnetic resonance |
| [18F]FDG PET/CT | 18fluorine-fluorodeoxyglucose positron emission tomography/computed tomography |
| HU | Hounsfield units |
| SUV | standardized uptake value |
| DST | dexamethasone suppression test |
| CS | cortisol secreting lesions |
| NS | non-secreting lesions |
| MACS | mild autonomous cortisol secretion |