Page 237 - Atlas of Small Animal CT and MRI

Neoplasia 227

Figure 2.8.5 Meningioma (Canine) MR

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

(d) T2, TP (e) T2*, TP (f) GP, TP
13y FS Golden Retriever with recent onset central vestibular and brainstem signs. There is a T1 isointense, T2 mixed‐intensity mass
involving the right side of the cerebellum (a,d: arrow). The complex T2 intensity paired with the multifocal susceptibility effect present
on the T2* image (e: arrows) is indicative of intralesional hemorrhage. The mass intensely, but nonuniformly, enhances following contrast
administration (b,c), and a sessile base and dural tail (b: arrow) reflect an extraaxial origin. Gross postmortem examination revealed an
extraaxial hemorrhagic caudal fossa mass that was histologically determined to be a meningioma.

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