L-Shaped Right-to-Left Crossed-Fused Renal Ectopia with Left Dysplastic Ureter

Abstract

Crossed-fused renal ectopia is a relatively rare congenital malformation. Herein, we report a case of L-shaped right- to-left crossed-fused renal ectopia with a left dysplastic ureter in a 5-year-old girl. She underwent a left nephrectomy and the postoperative course was uneventful.

Laparoscopic Sigmoid Colectomy for a Patient With Sigmoid Colon Cancer and Crossed-Fused Renal Ectopia: A Case Report

“…1,[4][5][6] CFRE can be classified into 6 different subtypes according to its anatomic phenotype: (A) unilateral fused kidney with inferior ectopia, (B) sigmoid or Sshaped, (C) lump or cake, (D) L-shaped or tandem, (E) disk, shield or doughnut, and (F) unilateral fused kidneys with superior ectopia (Fig. 5).…”

“…One or multiple aberrant renal arteries that arise from the abdominal aorta and/or iliac arteries exist in addition to the normal renal arteries. [1][2][3][4][5][6] Thus, CFRE has several anatomic anomalies that increase the difficulty of colectomy. In particular, the relationship between the fused kidney and the IMA requires special attention.…”

“…Characteristic anatomical anomalies, such as unilateral ureteral intersection of the midline, anteriorly placed renal pelvises, and aberrant renal blood vessels, must be considered when performing colectomy in these patients. [1][2][3][4][5][6] When performing radical resection of any kind of solid malignancies in a patient with anatomic anomalies of surrounding organs, one must assure sufficient oncologic clear-ance and avoidance of damage to surrounding organs, or one must consider appropriate combined resection, if necessary. To achieve these goals, comprehensive preoperative assessment and planning of surgery is important.…”