患者男,69岁。疑肝胆疾病就医。超声检查腹部示:右肾上极约3.7cm实性等回声肿瘤,来自皮质,外凸,肾窦无受压、变形(图1)。诊断:右肾皮质肿瘤。手术见:右肾中上极处一淡黄色、圆形肿物,大小约4cm。术后病理诊断:肾皮质腺瘤并出血。讨论肾实质分为皮质和髓质,皮质位于实质的表层, Male patient, 69 years old. Hepatobiliary disease medical treatment. Ultrasonography showed the abdomen: the right upper pole about 3.7cm solid and other echogenic tumors, from the cortex, convex, sinus pressure, deformation (Figure 1). Diagnosis: Right renal cortex tumors. See the surgery: the right upper pole at a light yellow, round tumor, the size of about 4cm. Postoperative pathological diagnosis: renal cortical adenoma and bleeding. Discussion Renal parenchyma is divided into cortex and medulla, cortex is located in the real surface,