肾嗜酸性细胞腺瘤1例的影像学表现并文献复习

Eosinophilic Renal Cell Tumor Imaging Findings in 1 Case and Review of Literature

目的:探讨1例肾嗜酸性细胞腺瘤(RO)的超声及CT表现,进一步提高对RO的认识。方法:结合文献对该RO的超声及CT表现进行讨论分析。结果:RO的二维声像图和CT平扫相仿,均为肾实质内圆形肿物,呈稍低回声/稍低密度,挤压肾实质并向肾表面隆起,其内部见一不规则低回声/低密度的中央疤,似"星芒"状。彩色血流图可见抱球样血流。CT增强扫描皮质期病灶边缘明显强化,中央呈片状轻度强化;实质期病灶边缘密度减低,中央部位强化伴低密度无强化区;肾盂期对比剂逐渐向中央充填,并见轻度强化伴缩小的低密度区,呈"轮辐状"强化。结论:RO瘤体中央区"星芒"状低回声/低密度疤痕是其特征性影像学表现,如在肾肿瘤超声或CT检查中出现此征象可提示RO,确诊主要依靠病理学检查。

Objective：To investigate one case of eosinophilic renal cell carcinoma（RO） of the ultrasound and CT,to further enhance the understanding of the RO.Methods：The literature ultrasound and CT of the RO＇s discussion and analysis of performance.Results：RO of the two-dimensional CT scan ultrasonography and similar,are round masses within the renal parenchyma,was slightly lower echo / slightly low-density.compression of renal parenchyma to the renal surface uplift,its internal see an irregular hypoechoic / low-density central scar.like＂stellate＂shape.Color flow image can be seen holding the ball like blood flow.Enhanced CT scan was significantly enhanced cortical edge of the lesion,slightly enhanced in the central flaky;substantial reduction of the lesion edge density.strengthening the central part of no enhancement with low density areas;pelvis to the center of the gradual filling of contrast medium,and see mild enhancement with Reduced low-density area was＂spoke-like＂enhancement.Conclusion：RO tumor central area＂stellate＂shape with low echo / scar its characteristic low-density imaging,such as ultrasound or CT examination of renal tumors appear the sign may be prompted to RO,rely mainly on pathological diagnosis.