British Journal of Radiology (2005) 78, 954-955
© 2005 British Institute of Radiology
doi: 10.1259/bjr/53711174
Spontaneous ureterocolic fistula secondary to calculous pyohydroureteronephrosis
W K Lee, MD
1
S D Chang, MD
1
C J Roche, MD
1
V A Duddalwar, MD
1
V A Rowley, MD
1 and
M G McLoughlin, MD
2
Departments of 1 Radiology and 2 Urology, University of British Columbia, Vancouver Hospital & Health Sciences Centre, 899 West 12th Avenue, Vancouver, British Columbia, Canada, V5Z 1M9

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Figure 1. (a) Axial CT at the L5-S1 disc level shows a tortuous left hydroureter with significant periureteral inflammation (thin arrows). The proximal sigmoid colon (thick arrow) overlies the dilated left ureter. (b) The obstructing left ureteric stone (open arrow) lies just distally.
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Figure 2. Antegrade ureterogram shows a fistula between the left ureter and sigmoid colon (thin arrow). Obstructing ureteral calculus lies distal to the fistula (thick arrow).
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Copyright © 2005 by the British Institute of Radiology.