Page 353 - Atlas of Small Animal CT and MRI

Neoplasia 343

Figure 3.4.13 Extradural Nephroblastoma Metastasis (Canine) MR

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

(d) T1, SP

(f) T1, SP (e) GP
2y F Great Dane with history of surgically excised cranial lumbar nephroblastoma 4 months previously. Representative transverse
images a–c are through the caudal thoracic region. There are multiple T1 isointense, T2 hyperintense, ovoid extradural masses
(a,b,d,f: arrows) that uniformly enhance following intravenous contrast administration (c: arrow). Masses are distributed widely
throughout the thoracolumbar vertebral canal and correlate closely with the appearance seen on postmortem examination
(e: arrows). Masses were confirmed to be extradural nephroblastoma metastases presumably resulting from residual disease or
surgical seeding.

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