Indication for surgery in a case of adrenal incidentaloma

Ref: Bailey&;s 26thE pg: 780. Treatment of Incidentaloma: Any non-functioning adrenal tumour greater than 4 cm in diameter and smaller tumours that increase in size over time should undergo surgical resection. Non-functioning tumours smaller than 4 cm should be followed-up after 6, 12 and 24 months by MRI and hormonal evaluation.