Fig. 4

Tumor characteristics and hormonal function changes in non-surgical NFAI management. A Tumor size evolution in non-surgically managed NFAI patients. Depicts the percentage of NFAI patients who experienced a significant increase (> 10 mm) in tumor diameter during the follow-up period in the non-surgical group. B Hormonal function alterations in non-surgically managed NFAI patients. Illustrates the proportion of patients within the non-surgical cohort who exhibited changes in hormonal function, transitioning towards a functional adrenal incidentaloma status during follow-up