Tumour in horseshoe kidney – different surgical treatment shown in five example cases

Abstract

Aim of the studyHorseshoe kidney is one of the most common genitourinary system anomalies. The frequency of its occurrence in the whole population is about 0.25%. In the available literature more than 200 cases of such tumour-defect coexistence have been described. Purpose of this study was to present the possibilities of using various methods of surgical treatment of tumors localized in the horseshoe kidney.Material and methodsIn the years 2004–2007 five patients were diagnosed and treated for tumours in horseshoe kidneys. Ultrasonography, computed tomography, urography and nuclear magnetic resonance were applied in the diagnosis. During the treatment both open operations and modern methods of treating tumours with a diameter less than 40 mm (nephron sparing) were used.ResultsRenal cell carcinoma (RCC) was confirmed in all the patients.ConclusionsOur observations confirm the fact that RCC is the most often diagnosed tumour in horseshoe kidneys. The prognostic factors are the same as in the case of tumours of the kidneys without any abnormalities. The diagnosis is based on applying the modern methods of imaging and in the treatment it is possible to apply the modern, non-invasive methods.

Tumores renales de pacientes con riñones en herradura: reporte de 2 casos clínicos

“…El riñón en herradura (RH) es la anomalía congénita de fusión renal más común; se presenta aproximadamente en el 0,25% de la población, con una incidencia en hombres 2:1 frente a las mujeres. Los pacientes a menudo son asintomáticos y la anomalía se descubre durante los estudios de imagen realizados por otros motivos; sin embargo, cuando los síntomas están presentes, se relacionan con hidronefrosis, infección o la formación de cálculos (1)(2)(3)(4)(5)(6).…”

Renal cell carcinoma of horseshoe kidney

“…Horseshoe kidney is the most common developmental disorder of the urinary system, which involves an anomaly of kidney fusion, and occurs in 3% of the population. This anomaly occurs in the fetal period, between the fourth and sixth week of life, and occurs in 1-4 people per 1,000 births [1]. Horseshoe kidney occurs more often in men than in the female population in the ratio of 2:1.…”

“…Predisposing factors for the development of transitional cell carcinoma of the horseshoe kidney are obstruction, chronic infection and the presence of calculosis. The tumor can be localized in any part of the kidney, but is mostly located on the isthmus[1,6]. Back in 1976, Buntli et al[1] presented 111 cases of tumors that developed in horseshoe kidneys, where RCC had the highest frequency.…”

“…The tumor can be localized in any part of the kidney, but is mostly located on the isthmus[1,6]. Back in 1976, Buntli et al[1] presented 111 cases of tumors that developed in horseshoe kidneys, where RCC had the highest frequency. Similar data have been published in contemporary literature.…”

Case ‒ Laparoscopic transperitoneal partial nephrectomy of T3a renal cell carcinoma within a horseshoe kidney

“…The incidence of RCC within HSK is predicted to equal that within the general population, approximately 5.2/100 000 individuals. [2][3][4] Surgical resection of these tumors has been described in the literature. Evidence is mounting that partial nephrectomy, rather than radical nephrectomy, and minimally invasive techniques for T3a RCC is safe and attains equivalent oncologic outcomes.…”