Page 214 - Atlas of Small Animal CT and MRI

204 Atlas of Small Animal CT and MRI

Figure 2.6.7 Necrotizing Leukoencephalitis (Canine) MR

(a) T2, TP (b) PD, TP

(c) T1, TP (d) T1+C, TP (e) GP, TP
2y FS Yorkshire Terrier with reduced mentation. The horizontal intensity gradient on all MR images is an artifact associated with the use
of surface coils for image acquisition. There is an ill‐defined region of T2 hyperintensity (a: arrowheads) and mild T1 hypointensity
(c: arrowheads) involving the left cerebral white matter and thalamus, resulting in a loss of definition between gray and white matter
(b). There is minimal peripheral enhancement of the lesion following contrast administration (d: arrowheads). Similar lesions were
evident on other images (not shown). Postmortem examination confirmed inflammatory and malacic changes, consistent with necrotiz­
ing leukoencephalitis.

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