Page 236 - Clinical Manual of Small Animal Endosurgery

224 Clinical Manual of Small Animal Endosurgery

Fig. 7.16 TCC of urethral papilla.

Fig. 7.17 TCC of urethra.

cystitis which is probably why most cases respond initially to antibiotic
therapy. In some cases urinary retention may lead to azotaemia, and
if tumour affects the ureteral orifice then hydroureter or hydronephrosis
may result. Ultrasound examination of these cases is essential to assess
areas of the urinary tract not visible from the lumen and also to plan
the procedure. Contrast radiography may also be indicated.
TCC is easily visualised at urethrocystoscopy (Lhermette and Sobel,
2008), and may appear in two forms. Most commonly the tumour is seen
as a fimbriated, quite friable mass of tissue spread over a wide area of
mucosa but without great thickening of the mucosal wall of the urethra or
bladder (Fig. 7.18). Alternatively a more solid, singular mass with smooth