Renal mass within a horseshoe kidney: preoperative evaluation with three-dimensional helical computed tomography.
Tumors arising within a horseshoe kidney are uncommon and may be difficult to characterize. We report a case of transitional cell carcinoma in a horseshoe kidney. Although several conventional imaging techniques were used to define the mass, each provided limited information. Recent advances in computer technology permit radiologic imaging to provide detailed examination of the horseshoe kidney with a single study. We describe the use of three-dimensional multislice helical computed tomography as the preferred modality to clarify the suspected neoplasm, vasculature, and collecting system of a horseshoe kidney. High-quality anatomic characterization will certainly enhance the opportunity for nephron-sparing surgery within this population.
Lee
C T
CT
Department of Urology, Memorial Sloan-Kettering Cancer Center, New York, New York, USA.
Hilton
S
S
Russo
P
P
D002291:Carcinoma, Papillary / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery; D006801:Humans; D007668:Kidney / Q000002:abnormalities* / Q000000981:diagnostic imaging; D007680:Kidney Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery; D007682:Kidney Pelvis; D008297:Male; D008875:Middle Aged; D014057:Tomography, X-Ray Computed / Q000379:methods