title: Hot cross bun sign following bilateral pontine infarction: a case report.
abstract: The hot cross bun sign is characterized by cruciform T2 signal hyperintensity in the pons and has been reported to be a specific but not pathognomic for multiple system atrophy. It reflects degeneration of pontine neurons and transverse pontocerebellar fibers, regardless of the underlying pathogenic process. Here, we report a case of hot cross bun sign following bilateral pontine infarction due to Wallerian degeneration of the pontocerebellar fibers.
authors.affiliation: Departments of Neurology, Bundang Jesaeng General Hospital, Seongnam, Korea.
authors.forename: Sook Young
authors.initials: SY
authors.lastname: Roh
authors.affiliation: Departments of Neurology, Bundang Jesaeng General Hospital, Seongnam, Korea.
authors.forename: Hyun-Soon
authors.initials: HS
authors.lastname: Jang
authors.affiliation: Neuroradiology, Bundang Jesaeng General Hospital, Seongnam, Korea.
authors.forename: Yoon Hee
authors.initials: YH
authors.lastname: Kim
keywords: Hot cross bun sign; Pontine infarction; Wallerian degeneration