患者女,49岁。主因右腰部胀满不适5年,发现右肾肿物1月余入院。实验室检查未见明显异常。CT表现:CT平扫示右肾中份内侧可见一直径约25 mm类圆形等及略高密度结节,边缘尚清,其内多发点片状钙化灶;增强扫描动脉期示病灶软组织成分不均匀中度强化,静脉期及延迟期病灶软组织成分进一步强化并强化范围较动脉期增大(图1～5)。 Female patient, 49 years old. The main reason for the right lower back full discomfort for 5 years, found that more than 1 month left renal pelvis admission. Laboratory tests showed no obvious abnormalities. CT manifestations: CT plain scan showed a diameter of about 25 mm in the medial side of the right kidney and a slightly higher density of nodules, the edge is still clear, which flake-point calcified foci; enhanced scan of the lesion showed soft tissue components of the disease is not Even moderate enhancement, venous phase and delayed soft tissue lesions further strengthen and strengthen the scope of the arterial phase increased (Figure 1 ~ 5).