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Neurol India. 2011 Mar-Apr;59(2):266-9. doi: 10.4103/0028-3886.79143.

A Hot Cross Bun sign from diffusion tensor imaging and tractography perspective.

Author information

1
Department of Biomedical Imaging, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia. kokbeng.loh@gmail.com

Abstract

A "Hot Cross Bun" sign on T2-weighted MRI was described as a result of selective loss of myelinated transverse pontocerebellar fibers and neurons in the pontine raphe with preservation of the pontine tegmentum and corticospinal tracts (CST). However, neuropathologic studies showed contradicting results with no sparing of the CST. This is a pictorial and quantitative demonstration of the sign on diffusion tensor imaging and tractography, which provides the imaging evidence that is consistent with neuropathologic findings.

PMID:
21483130
DOI:
10.4103/0028-3886.79143
[Indexed for MEDLINE]
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