Department of Urology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan.
Clin Exp Nephrol. 2012 Aug;16(4):647-51. doi: 10.1007/s10157-012-0661-z. Epub 2012 Jun 28.
A 60-year-old man undergoing hemodialysis for 13 years was referred to our department for evaluation of gross hematuria and a right renal mass. Voided urine cytology was negative. Computed tomography and magnetic resonance imaging demonstrated a right renal mass (32 × 22 × 20 mm in diameter). We clinically diagnosed the tumor as renal cell carcinoma staged T1aN0M0 arising from a horseshoe kidney, and performed right heminephrectomy. Pathological examination of the surgical specimen showed a grade 2, pT1a, clear cell carcinoma and negative surgical margin. To our knowledge, this is a rare case of a renal cell carcinoma arising from a horseshoe kidney in a chronic hemodialysis patient.
一位 60 岁男性，因血液透析治疗 13 年，就诊于我科，因肉眼血尿和右肾肿物。尿脱落细胞学检查阴性。CT 和 MRI 检查示右肾肿物（32×22×20mm）。临床诊断为来源于马蹄肾的 T1aN0M0 期肾细胞癌，行右肾部分切除术。术后标本病理检查示：2 级，pT1a，透明细胞癌，切缘阴性。据我们所知，这是一例慢性血液透析患者，来源于马蹄肾的肾细胞癌，非常罕见。
