Page 604 - Atlas of Small Animal CT and MRI

594 Atlas of Small Animal CT and MRI

Figure 5.8.9 Acute Renal Infarcts (Canine) CT
6y FS Labrador Retriever with cutaneous pyo-
granulomatous inflammation and fever. The
top and bottom rows of images were taken 1
week apart. In the acute phase of infarction,
there are faint, triangular or wedge‐shaped
hypoattenuating regions in the right (a: arrow)
and left (b: arrows) renal cortex and medulla.
After 1 week, these progress to larger, mark-
edly hypoattenuating triangular regions affect-
ing the cortex and medulla (c,d: arrow).

(a) CT+C, TP (b) CT+C, TP

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

Figure 5.8.10 Renal Infarcts (Canine) CT

(a) CT, TP (b) CT, TP (c) IL
5mo F German Shepherd Dog with multiple congenital cardiac anomalies including cor triatriatum dexter. Images were acquired during
the arterial phase of contrast administration. The bifurcating left renal artery is evident (a: black arrow). Multiple focal regions of cortical
hypoperfusion are seen near the hilus (a: arrows), likely representing infarcts in the peripheral interlobular arteries (c: black arrow).
A regional infarct involving the caudal pole of the kidney is present (b: open arrows), most likely representing infarction of one or more
interlobar arteries (c: open arrow). The impaired cardiac circulation and/or previous cardiac surgery may be related to the infarcts.

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