Lower ureteric stricture with large calculus
left sided flank pain; Usg showed 2 cm calculus in left lower ureter.
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IVP shows a left lower ureteric calculus on control film most likely at the VUJ
The contrast study shows a moderately dilated ureter and the calculus is seen to move up and down.
The left ureter has an abrupt narrowing with dilatation of the proximal part.
There is a stricturous narrowing of the left lower ureter adjacent to the left VUJ causing stasis of urine and thereby predisposing to calculus formation