Magnetic resonance imaging and clinical findings in carbon monoxide intoxication in dogs. A case series.

Abstract

This paper presents magnetic resonance imaging (MRI) findings of three dogs after carbon monoxide intoxication. In the first and second cases, MRI changes were confined to both caudate nuclei and in the first case also to the putamen as bilaterally symmetric diffuse homogenous T2 and FLAIR hyperintense, T1 hypointense lesions. No contrast enhancement was seen. In the third case MRI revealed multiple areas of hyperintensity bilaterally on T2 and FLAIR as well as ill-defined areas within the frontal, parietal and occipital grey matter. The caudal colliculi, globus pallidus, substantia nigra and central area of the thalamus showed bilaterally hyperintense lesions on T2w and FLAIR with moderate enhancement after intravenous contrast administration.