most of the adrenocortical adenomas are less than 2 cm in greatest dimension and less than 50 gram in weight. however, size and weight of the adrenal cortical tumors are no longer considered to be a reliable sign of benignity or malignancy. grossly, adrenocortical adenomas are encapsulated, well-circumscribed, solitary tumors with solid, homogeneous yellow-cut surface. necrosis and hemorrhage are rare findings.