Laparoscopic partial nephrectomy for renal cell carcinoma in a horseshoe kidney

Authors

  • Tarik Benidir Queen's University School of Medicine
  • Tiago Jacometo Coelho de Castilho
  • Guilherme Rodrigo Lobo Cherubini
  • Murilo de Almeida Luz

DOI:

https://doi.org/10.5489/cuaj.2289

Keywords:

Laparoscopy, Nephrectomy, Neoplasms, Urogenital abnormalities, Carcinoma, horseshoe kidney

Abstract

Horseshoe kidney has an incidence rate ranging from 1 in 400 to 1 in 1000, with a 2:1 ratio in men. It also has a predilection for chromosomal aneuploidies. From a pathophysiology standpoint, this anomaly occurs during the second to sixth week of gestation when the inferior portion of the metanephric blastema fuses to form an isthmus, commonly in the lower renal pole (90%). As a result of this fusion, the kidney may not bypass the inferior mesenteric artery and is impeded in its ascent. With an aberrant anatomical orientation and location, complications arise including hydronephrosis, renal calculi and a twofold risk of Wilms tumour. Despite these findings, the association of renal cell carcinoma (RCC) within a horseshoe kidney is extremely rare and fewer than 200 cases have been described. Therapeutically speaking, partial nephrectomies are the gold standard of treatment for renal tumours smaller than 4 cm in diameter, with a growing indication to accomplish this procedure by laparoscopic or robotic means. We report a case of an asymptomatic 58-year-old male with an incidental computed tomography scan finding of a 4-cm solid mass in the right moiety of a horseshoe kidney. He was treated by laparoscopic partial nephrectomy. There have only been 2 other reported cases to our knowledge on a laparoscopic partial nephrectomy in a horseshoe kidney for RCC. We believe that, in experienced hands, the laparoscopic approach may be used successfully for this clinical situation.

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Author Biography

Tarik Benidir, Queen's University School of Medicine

Tarik Benidir M.Sc

MD candidate 2016*

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Published

2014-12-15

How to Cite

Benidir, T., Coelho de Castilho, T. J., Lobo Cherubini, G. R., & de Almeida Luz, M. (2014). Laparoscopic partial nephrectomy for renal cell carcinoma in a horseshoe kidney. Canadian Urological Association Journal, 8(11-12), e918–20. https://doi.org/10.5489/cuaj.2289

Issue

Vol. 8 No. 11-12 (2014): CUAJ December

Section

Case Report

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