Table 1.
NIH guideline [10].
| NIH 2002 | |
|---|---|
| Functional adrenal incidentaloma (hormonal hypersecretion) | Surgical resection or medical treatment |
| Nonfunctional adrenal incidentaloma | >6 cm: surgical resection |
| 4–6 cm: resection or followup | |
| Nonfunctional adrenal incidentaloma < 4 cm | No surgical resection, no recommendations about followup |
| Adrenal incidentaloma suspicious for metastasis | No benefit from resection |