Portal de Periódicos da CAPES

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

2011; Medknow; Volume: 59; Issue: 2 Linguagem: Inglês

10.4103/0028-3886.79143

1998-4022

KokBeng Loh, Kartini Rahmat, Shen‐Yang Lim, Norlisah Ramli,

Fetal and Pediatric Neurological Disorders

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.