Ueno Y, Mizusawa H, Ishizuka O, Igawa Y, Nisizawa O, Uehara T
Department of Urology, Shinshu University School of Medicine.
Hinyokika Kiyo. 1999 Oct;45(10):707-9.
A 76-year-old man was seen at this hospital for the treatment of asymptomatic gross hematuria. Retrograde pyelography revealed a filling defect in the left lower calyx. The diagnosis was left renal pelvic carcinoma by urinary cytology. The patient underwent left nephrouretectomy with partial cystectomy. Hemosiderin accumulation on histological examination demonstrated an arteriovenous malformation in the left lower calyx. Transitional cell carcinoma was confirmed apart from the arteriovenous malformation, and no relation between the two was seen. These findings suggest the coexistence of a renal arteriovenous malformation with a renal pelvic and ureteral carcinoma. Hematuria was due probably to rupture of the renal arteriovenous malformation.
一名76岁男性因无症状肉眼血尿到本院就诊。逆行肾盂造影显示左肾下盏有充盈缺损。尿细胞学检查诊断为左肾盂癌。患者接受了左肾输尿管切除术及部分膀胱切除术。组织学检查发现含铁血黄素沉积，提示左肾下盏存在动静脉畸形。除动静脉畸形外，还确诊了移行细胞癌，二者之间未见关联。这些发现提示肾动静脉畸形与肾盂输尿管癌共存。血尿可能是由于肾动静脉畸形破裂所致。
