原发性输尿管淋巴上皮样癌一例报告并文献复习

目的 探讨原发性上尿路淋巴上皮样癌的临床表现、病理特点、治疗和预后. 方法 原发性输尿管淋巴上皮样癌患者1例.女,81岁.间断无痛性全程肉眼血尿1个月就诊.CT尿路造影提示左输尿管盆腔段腔内可见长约2.5 cm类圆形软组织密度影.行腹腔镜下左输尿管癌根治术. 结果大体标本:纵行打开输尿管,距输尿管远端3.5 cm处见2.5 cm×2.0 cm隆起肿物,切面灰白,质稍硬,实性.镜检:肿瘤细胞呈巢状分布,体积较大,胞质丰富,核大,圆形,空泡状,核仁明显,间质内大量小淋巴细胞浸润.病理诊断:输尿管淋巴上皮样癌,浸及深肌层,病理分期pT2N0M0.原位杂交技术EBER为阴性.随诊3个月未见肿瘤复发及转移. 结论原发性上尿路淋巴上皮样癌罕见,需经病理组织学检查确诊.根治手术为主要治疗手段,预后优于其他类型尿路上皮癌.

Lymphoepithelioma-like carcinoma of the ureter(a case report and literature review)

Objective To investigate the clinical presentations,pathologic features,treatment and prognosis of lymphoepithelioma-like carcinoma(LELC)in the upper urinary tract. Methods A case with LELC of the ureter was retrospectively analyzed.A 81-year-old female patient was hospitalized because of gross hematuria for 1 month. CTU demonstrated a 2.5cm tumor in the left ureter.Radical nephroureterectomy was performed laparoscopically. Results Pathologic findings showed invasive poorly differentiated carcinoma in a prominent lymphocytic background.The diagnosis was LELC of the ureter.Epstein-Barr virus in situ hybridization was negative.No disease progression was noted at 3-month foUow-up. Conclusions LELC of the upper urinary tract is rare.All the cases are diagnosed pathologically.The disease eould be treated with radical surgery.Although the differentiation of the tumour cells is poor,the prognosis of pure subtypes seems to be better than that of other types of urothelial carcinoma.