Page 527 - Atlas of Small Animal CT and MRI

Hepatovascular Disorders 517

Figure 5.2.14 Congenital Extrahepatic Shunt—Right Gastric–Caval (Canine) CT
1y FS Terrier with failure to gain weight.
Images a–c are ordered caudal to cranial, and
images d–f are ordered cranial to caudal. The
white arrows denote the cranial course of the
shunt and the black arrows denote the caudal
course to the shunt termination. The large
shunt vessel (a–c: white arrow) arises from
the gastroduodenal vein at the level of the
right gastric vein and travels cranially to the
porta hepatis, where it gives off a right intra-
hepatic branch (b: arrowhead). It crosses to
(a) CT+C, TP (b) CT+C, TP
the left side (a–c: black arrow) and travels
caudally to join the caudal vena cava near the
right kidney (d: black arrow). The dorsal plane
MIP image shows the right (e: white arrows)
and left (e: black arrows) arms of the shunt
vessel. A plastic ameroid constrictor was
placed around the shunt vessel at its junction
with the caudal vena cava (f: asterisk),
occluding the blood flow. See page 507 for
Legend for Figures 5.2.1–5.2.18.

(c) CT+C, TP (d) CT+C, TP

(e) CT+C, MIP, DP (f) CT+C, TP

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