Yasunaga Y, Nishimura K, Takatera H, Fujioka H, Tsujimoto M
Department of Urology, Osaka Police Hospital.
Hinyokika Kiyo. 1994 Dec;40(12):1103-7.
We report a rare case of collecting duct carcinoma of the kidney (Bellini's duct carcinoma). A 37-year-old woman visited our hospital with a chief complaint of asymptomatic hematuria. We suspected right renal pelvic tumor from the detection of round filling defects in the upper calyces of the right kidney by image diagnoses. A ureteroscopic biopsy revealed a low grade renal cell carcinoma. Therefore, she received right partial nephrectomy immediately. Histological examination of the surgical specimen showed a highly differentiated adenocarcinoma with papillary proliferation besides the collecting duct epithelium. With the results of the strongly positive patterns of immunohistochemical staining with high molecular cytokeratin and peanut aggulutinin, the tumor corresponded to the distal nephrons. Therefore we made the diagnosis of Bellini's duct carcinoma. She had been alive without evidence of metastases for one year after surgery.
我们报告一例罕见的肾集合管癌（贝氏管癌）。一名37岁女性因无症状血尿为主诉前来我院就诊。通过影像诊断发现右肾上盏有圆形充盈缺损，我们怀疑为右肾盂肿瘤。输尿管镜活检显示为低级别肾细胞癌。因此，她立即接受了右肾部分切除术。手术标本的组织学检查显示，除了集合管上皮外，还有具有乳头样增生的高分化腺癌。根据高分子细胞角蛋白和花生凝集素免疫组化染色呈强阳性模式的结果，该肿瘤符合远端肾单位。因此，我们诊断为贝氏管癌。术后一年她存活，无转移迹象。
