Medial Longitudinal Fasciculus on MRI in a Patient with Internuclear Ophthalmoparesis: A Case Report

다국어 초록 (Multilingual Abstract)

The medial longitudinal fasciculus (MLF) is myelinated composite tract, lying near the midline, ventral to periaqueductalgrey matter that plays a key role in coordinating eye movements. A lesion of the MLF results in an ipsilateral adductiondeficit and a contralateral abducting nystagmus, referred to as an internuclear ophthalmoparesis. The blended tract withadjacent white matter in pons and midbrain is indistinguishable on brain imaging such as CT and MRI. Until now, to thebest of our knowledge, MLF is not delineated on in vivo MRI. We present a case showing the whole connecting courses ofMLF lesion on MRI in a patient with inflammatory demyelinating disorder.

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