Neurological picture. Isolated abducens and facial nerve palsies due to a facial collicular plaque in multiple sclerosis.

摘要

Multiple sclerosis (MS) is an autoimmune demyelinating disease of the central nervous system. Although brainstem involvement is common, isolated cranial nerve palsies, mostly caused by intranuclear intramedullary lesion, is rare in MS patients.In this study, we describe an MS patient who presented with isolated abducens and facial nerve palsies due to a small facial collicular lesion, and provide an anatomical review of the lesion in this case.A 63-year-old Japanese woman had experienced three demyelinating episodes with different spinal lesions since the age of 33 years.