Page 602 - Atlas of Small Animal CT and MRI

592 Atlas of Small Animal CT and MRI

Figure 5.8.7 Retrocaval Ureter (Canine) CT

(a) US, SP (b) US, TP (c) CT+C, TP

(d) CT+C, TP (e) CT+C, TP (f) CT+C, TP

(g) CT+C, TP
3y FS Bernese Mountain Dog with incidentally discovered hydroureter. Images c–g are ordered from cranial to caudal. The dilated ureter
was visible on ultrasound examination ventral to the caudal vena cava (b: arrow). On both ultrasonographic and CT images, the caudal
vena cava was located on the left side, forming a curved lateral deviation caudal to the kidneys (a,c–f: asterisk). The left renal pelvis and
ureter are dilated (c–e: arrows), and the ureter takes a dorsal course relative to the caudal vena cava. The ureter is compressed between
the caudal vena cava and aorta more caudally (f: arrow) before entering the bladder normally at the trigone (g: arrow).

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