Hayashi T, Fukuda H, Hagiwara T, Sakai K
Department of Urology, Tsuchiura Kyodo Hospital.
Hinyokika Kiyo. 1991 Jun;37(6):613-5.
A 65-year-old man with pyuria visited our hospital. Physical examination had revealed a mass in the left upper quadrant of the abdomen. Intravenous pyelogram, ultrasonogram, computerized tomography and selective renal arteriogram suggested a hypervascular renal cell carcinoma on the left side of the horseshoe kidney. A left radical nephrectomy with division of the isthmus was performed. The pathological diagnosis indicated renal cell carcinoma consisting of clear cell type without invasion of the capsule or renal pelvis. Treatment with alpha-interferon was started and has continued for six months with no evidence of recurrence. Only 35 cases of horseshoe kidney with a renal tumor have been reported in the Japanese literature. Among them, adenocarcinoma was present in 54.3% of the cases, renal pelvic tumor in 17.1%, and nephroblastoma in 14.3%. While adenocarcinoma in horseshoe kidney is seen less often than normal kidney, there is an increased incidence of both renal pelvic tumor and nephroblastoma.
一名65岁的男性因脓尿前来我院就诊。体格检查发现腹部左上象限有一个肿块。静脉肾盂造影、超声检查、计算机断层扫描和选择性肾动脉造影提示马蹄肾左侧有一个富血管性肾细胞癌。进行了左侧根治性肾切除术并切断峡部。病理诊断为透明细胞型肾细胞癌，未侵犯包膜或肾盂。开始使用α-干扰素治疗，已持续六个月，无复发迹象。日本文献中仅报道了35例马蹄肾合并肾肿瘤的病例。其中，腺癌占54.3%，肾盂肿瘤占17.1%，肾母细胞瘤占14.3%。虽然马蹄肾中的腺癌比正常肾脏少见，但肾盂肿瘤和肾母细胞瘤的发病率均有所增加。
