Fig. 4

Pathological examination of the adrenal mass after surgery. a. Histology (H&E staining, × 100): clear and acidophilic cells were present. The outer membrane of the adrenal cortex was integrated into this pathological picture. b. Histology (H&E staining, × 200): clear and acidophilic cells were present. The cells displayed a regular appearance, nuclear heteromorphism was not obvious and pathological mitosis was rare in the images we examined. All of the features indicated that that adrenal mass was most likely an adrenal cortical adenoma