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Figure 1: (a) CT showing the left hydroureteronephrosis (arrows) in longitudinal cuts, (b) Retroiliac displaced ectopic ureter (single arrow) anterior to the piriformis muscle (piriformis shown by double arrows) in transverse cuts of the CT-urogram, (c) An RGU showing the contrast-fi lled retroiliac "curlicue" left ureter (see arrow) in the sciatic notch, (d) Nephrostogram showing a fi xed kinking (see arrows) of the left ureter. (Note: Panel Fig-1d shows the image to be laterally inverted as the patient was subsequently placed in a prone position for a prior PCN)

Figure 1: (a) CT showing the left hydroureteronephrosis (arrows) in longitudinal cuts, (b) Retroiliac displaced ectopic ureter (single arrow) anterior to the piriformis muscle (piriformis shown by double arrows) in transverse cuts of the CT-urogram, (c) An RGU showing the contrast-fi lled retroiliac