Abstract
Objective To study the process and mechanism underlying Wallerian degeneration of the central nervous system after stroke.Methods A case suspected of stroke with bilateral symmetrical lesions in middle cerebellar peduncles (MCPs) was described.The etiology of bilateral MCP abnormal signals on MR was analyzed according to the clinical process and neuroanatomy.Results Unilateral paramedian pontine infarction,covering the crossing area of pontocerebellar fibers, would cause bilateral secondary degeneration of MCPs,with hyperintense signals on T2-,Flair and diffusion-weighted images.Conclusions Wallerian degeneration of projecting system is a common sequel after stroke and should not be misdiagnosed as other diseases. Key words: Stroke; Wallerian degeneration; Magnetic resonance image
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