Page 278 - Atlas of Small Animal CT and MRI

268 Atlas of Small Animal CT and MRI

Figure 2.10.3 Cranial Nerve II Granulomatous Meningoencephalitis (Canine) MR

(a) T2, DP (b) T1, DP (c) T1+C, DP

(d) T1, TP (e) T1+C, TP
4y MC Golden Retriever with ataxia and weakness. The right optic nerve is mildly enlarged and is T1 isointense and T2 hyperintense
(a,b,d: arrow). There is also a slight bulge of the optic disc, best seen on the dorsal plane T2 image (a: arrowhead). The nerve moderately
enhances following contrast administration (c,e: arrow). Postmortem examination confirmed granulomatous meningoencephalitis
involving the brain and the right optic nerve. The MR features of the optic nerve lesion are subtle in this patient.

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