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Xp11.2易位/TFE3基因融合相关性肾癌的临床分析

Clinical analysis of Xp11.2 translocation/TFE3 gene fusion-related renal cell carcinoma
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摘要 目的对Xp11.2易位/TFE3基因融合相关性肾癌的临床病例及病理特征进行分析,以求对该疾病进一步认识。方法筛选2010年1月至2018年1月收治的Xp11.2易位/TFE3基因融合相关性肾癌患者32例,其中男性18例,女性14例;年龄13~77岁,平均45岁;肿瘤直径1.5~12.0 cm,平均8.5 cm;其中15例常规体检发现,10例腰部不适、7例肉眼血尿就诊。影像学检查平扫示低密度影,边界欠清,增强扫描呈不均匀轻度强化,均考虑恶性可能,建议病理检查。32例患者均行腹腔镜下肾根治性切除术。结果32例患者术后均行病理检查,病理常规镜下显示细胞多透明,巢状、乳头状生长,伴或者不伴大片坏死,出血;免疫组织化学检查示TFE3均(+)、CD10、Vimentin、RCC、PAX-8、EMA、CK8/18、CKpan等均呈不同程度的阳性。术后病理诊断均为Xp11.2易位TFE3基因融合相关性肾癌。术后20例接受白细胞介素-2治疗,7例接受细胞回输治疗,5例接受舒尼替尼靶向药物治疗。随访10~72个月,平均53个月。2例术后18个月出现脑转移死亡;3例术后14个月出现全身多处骨转移;接受靶向药物辅以唑来膦酸注射液治疗后,肿瘤暂无无明显进展。其他患者均恢复尚可。结论Xp11.2易位TFE3基因融合相关性肾癌好发于儿童,且免疫组织化学检查(IHC)TFE3阳性是诊断该病的重要标准,本研究即靠IHC结果确诊,手术治疗仍是该病首选的治疗方案,出现区域淋巴结转移时可辅以靶向治疗。
作者 杜尉 江志国 沙梦玲 彭华 陈跃 李海龙 李硕丰 陈家存 温儒民 Du Wei;JIiang Zhiguo;Sha Mengling;Peng Hua;Chen Yue;Li Hailong;Li Shuofeng;Chen Jiacun;Wen Rumin
出处 《国际泌尿系统杂志》 2020年第2期313-315,共3页 International Journal of Urology and Nephrology
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