近年来随着超声波CT和扫描检查的普及,肾上腺偶发肿瘤(incidentaloma)的检出率很高。此肿瘤的病因很多,或为皮质腺癌、囊肿、癌瘤或是从髓质发生的嗜铬细胞瘤,有时需要及早手术摘出,但是虽怀疑为肾上腺皮质肿瘤而未见症状时是否应当手术则很难判断。如怀疑是恶性肿瘤就需要立即手术。不过至今尚无判断恶性肿瘤的确切指标。近2年来日本有38个医疗单位检出了105例肾上腺偶发肿瘤,发病 In recent years, the incidence of incidental adrenal tumors (Accidentalomas) has been high with the popularity of ultrasound CT and scan tests. The cause of this tumor is many, it is cortical adenocarcinoma, cyst, carcinoma or pheochromocytoma that occurs from the medulla, and it is sometimes necessary to remove it by surgery. However, if it is suspected to be an adrenocortical tumor, it should be operated if no symptoms are seen. It is difficult to judge. If you suspect a malignancy, you need immediate surgery. However, there is no precise indicator of malignancy yet. Over the past 2 years, 38 cases in Japan have detected 105 cases of adrenal sporadic tumors.