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MOG-antibody associated demyelinating disease is a new emerging diagnostic entity. Recently, international recommendations for testing of anti-MOG antibodies were published. Herein, we describe a case of anti-MOG antibody-associated demyelinating disease initially diagnosed as typical MS, and, at presentation, not fulfilling the proposed recommendations. This case highlights the expanding spectrum of anti-MOG antibody-associated demyelinating disease, illustrating the distinct and overlapping features of MS and MOG-antibody associated demyelinating disease, providing evidence that on rare occasions these recommendations may prove too restrictive., (Copyright © 2019 Elsevier B.V. All rights reserved.)

Background: Spastic paretic hemifacial contracture (SPHC) is characterized by sustained unilateral contraction of the facial muscles associated with mild ipsilateral facial paresis. Rarely described in the context of multiple sclerosis (MS), it has never been reported as presenting symptom of MS., Case Reports: Two patients developed SPHC within the context of a clinically isolated syndrome suggestive of MS. EMG revealed continuous resting activity of irregularly firing motor unit potentials, associated with impaired recruitment upon voluntary contraction. SPHC remitted fully in both patients., Conclusions: SPHC, a rare but distinct clinical and EMG entity, can occasionally be the presenting feature of MS., (Copyright © 2017 Elsevier B.V. All rights reserved.)

Objective: To integrate neurophysiological findings with clinical and imaging data in a consecutive series of multiple sclerosis (MS) patients developing facial numbness during the course of an MS attack., Methods: Nine consecutive patients with MS and recent-onset facial numbness were studied clinically, imaged with routine MRI, and assessed neurophysiologically with trigeminal somatosensory evoked potential (TSEP), blink reflex (BR), masseter reflex (MR), facial nerve conduction, facial muscle and masseter EMG studies., Results: All patients had unilateral facial hypoesthesia on examination and lesions in the ipsilateral pontine tegmentum on MRI. All patients had abnormal TSEPs upon stimulation of the affected side, excepting one that was tested following remission of numbness. BR was the second most sensitive neurophysiological method with 6/9 examinations exhibiting an abnormal R1 component. The MR was abnormal in 3/6 patients, always on the affected side. Facial conduction and EMG studies were normal in all patients but one., Conclusions: Facial numbness was always related to abnormal TSEPs. A concomitant R1 abnormality on BR allowed localization of the responsible pontine lesion, which closely corresponded with MRI findings. We conclude that neurophysiological assessment of MS patients with facial numbness is a sensitive tool, which complements MRI, and can improve lesion localization., (Copyright © 2016 Elsevier B.V. All rights reserved.)