Adrenocortical neoplasm, oncocytic type (ACNO), known as adrenal oncocytoma, is a rare histologic subtype of adrenocortical neoplasms. Approximately one third of ACNOs are benign, 40% are borderline, and one fourth are malignant (11). Although benign and borderline ACNOs have a favorable
Kimura et al. (Thu,) studied this question.