A Worm’s Tale or Why to Avoid the Raccoon Latrine: A Case of Baylisascaris procyonis Meningoencephalitis

Figure 1

MRI obtained on admission demonstrating diffuse confluent symmetric T2 FLAIR hyperintensities in the supratentorial periventricular and deep white matter, sparing the subcortical U fibers, and in bilateral cerebellar hemispheres around the deep nuclei (a–c). A focus of T2 FLAIR hyperintensity is noted in the lateral left thalamus (arrow in (b)). Postcontrast images reveals punctiform and curvilinear enhancement centered in bilateral supratentorial periventricular white matter with a perivascular distribution pattern (arrows in (d)). Foci of faint and curvilinear enhancement (arrow in (f)) were also present in bilateral cerebellar white matter. Small curvilinear enhancement was noted in the lateral left thalamus, likely reflective of a vein or a perivenous process (arrow in (e)).

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