FINDINGS ON EXCRETORY UROGRAPHY CLOSELY FOLLOWING EXTRAVASATION OF CONTRAST MATERIAL FROM THE PELVIC URETER

¹ LANSING, MICHIGAN

1. Laceration of the ureteral mucosa or perforation of the ureter during ureteral catheterization with subsequent extravasation of contrast medium is a relatively frequent complication of retrograde pyelography.

2. No reference to the roentgenographic findings when excretory urography is performed soon after this complication could be found in the English literature.

3. Two case reports are presented which illustrate the findings which may result from this sequence of events.

4. Bladder filling defects simulating carcinoma, ureteral obstruction, and extravasation of the intravenously administered contrast medium about the distal ureter are three findings illustrated by these cases.

5. Complete ureteral perforation by a catheter usually occurs only if the ureter is diseased or damaged or if specialized catheters such as stone extractors and metal tip catheters are used.

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