肾集合管癌并发透明细胞癌一例报告

Renal collecting duct carcinoma complicated with clear cell carcinoma of kidney:one case report

肾集合管癌临床罕见,与透明细胞癌并发更罕见。本文报道1例肾集合管癌并发透明细胞癌患者,因左腰痛及肉眼血尿于2019年9月15日入院,术前CT检查发现左肾上中部和下极各1个肿瘤,肾内侧缘多个肿大淋巴结,CT诊断为肾集合管癌并发透明细胞癌,腹膜后淋巴结转移,行根治性左肾切除术。术后病理诊断左肾集合管癌(中上极)合并透明细胞癌(下极)。术后采用舒尼替尼治疗6个月,随访至术后13个月因肿瘤广泛转移死亡。

Renal collecting duct carcinoma(CDC)is rare in clinic,complicated with clear cell renal cell carcinoma(ccRCC)of one kidney is extremely rare.We reported a case CDC complicated with ccRCC of one kidney.The patient was admitted as left low back pain and gross hematuria,preoperative CT examination showed that one tumor was found in the upper middle pole and another tumor at lower pole of the left kidney,and multiple enlarged lymph nodes in the medial edge of the kidney.CT diagnosis was renal collecting duct carcinoma complicated with clear cell carcinoma of the left kidney,retroperitoneal lymphatic metastasis and underwent radical nephrectomy.Postoperative pathological diagnosis was CDC(upper middle pole)complicated with ccRCC(lower pole)of the left kidney.The patients were treated with sunitinib for 6 months and survived 13 months,and died of extensive metastasis.