[A case of non-functional adrenocortical adenoma showing enlargement in size during follow-up period]

Abstract

A case of non-functional adrenocortical adenoma is reported. The patient was a 62-year-old woman with the chief complaint of right hypochondoralgia. The small right adrenal tumor was found incidentally by ultrasonography on examination for cholecystolithiasis. Since there was no evidence of malignancy from biochemical data, observation of the tumor was performed for 3 months. However, the lesion was gradually increased in size. Therefore, right adrenalectomy was performed. Histological findings revealed benign adrenocortical adenoma. In the Japanese literature this case seems to be the 36th case of non-functional adrenocortical adenoma.