Page 1178 - Clinical Small Animal Internal Medicine

(a) (b)

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(c) (d)

Figure 122.7 Fluoroscopic images during urethral stent placement from a 9‐year‐old female mixed‐breed dog with transitional cell
carcinoma of the bladder trigone and severe stranguria. (a) The initial urethrogram shows multiple filling defects in the area of the bladder
trigone and proximal urethra (asterisk). (b) A wire has been advanced past the obstruction and into the bladder, over which the self‐
expanding stent is advanced. The length of the stent can be seen between the two arrows. (c) The stent is partially expanded under
fluoroscopic guidance. (d) A repeat urethrogram post stent implantation shows improved urethral patency with mild urethral spasm at
the distal aspect of the stent. A marker catheter is present in the colon in all images to correct for radiographic magnification.

(a) (b)

Figure 122.8 Radiographic images from a male mixed‐breed dog with a urethral stricture and severe stranguria. (a) The contrast
urethrogram prior to stent implantation with a focal stricture in the urethra (arrow). (b) One day post stent implantation with improved
urethral lumen diameter; the dog was continent and urinating normally upon stenting.