Presumptive Haematomyelia Secondary to Warfarin Toxicosis in a Dog

Figure 1

MRI T2-weighted sagittal planes (a, b) of the cervical, thoracic, and lumbar vertebral column showing an extensive heterogeneous intramedullary lesion (arrows) and the presence of a hypointense dorsal rim suggesting subdural haematoma (small arrows on (b)). On the transverse planes at the level of C2 (c) and L5 (d), there are similar isointense lesions surrounded by a hyperintense rim (arrows). These signal patterns are consistent with a haematomyelia changing from early subacute to late subacute with intra- and extracellular methemoglobin.

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