Unilateral trigeminal motor nerve neuropathy

Nagure, Pramod; Urunkar, Bhaskar; Nikam, Vasudha R.; Tiwale, Sunita Milind; Pawal, Sambhaji

doi:10.1016/j.radcr.2022.05.074

Cited by 2 publications

(4 citation statements)

References 8 publications

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“…Among the reports on unilateral trigeminal muscle atrophy, only Bertot et al [5] No effective treatment for trigeminal motor neuropathy exists yet [15]. In a previous report, there was no improvement in clinical symptoms even though the tumor size near…”

Section: Discussionmentioning

confidence: 95%

Focal Atrophy of the Unilateral Masticatory Muscles Caused by Trigeminal Neuropathy from the Tumor in the Foramen Ovale

Hong

Chung

2022

J Oral Med Pain

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Neurogenic muscular atrophy is muscle wasting and weakness caused by trauma or disease of the nerve that innervates the muscle. We describe a case of unilateral trigeminal neuropathy and neurogenic muscular atrophy of the masticatory muscle caused by a tumor in the foramen ovale. A 59-year-old man visited our clinic complaining of difficulty in right-sided mastication. There were no evident clinical signs and symptoms of temporomandibular disorder. However, severe atrophy of the right masseter and temporalis muscles and hypesthesia of the right side mandibular nerve area were confirmed. Through T1 and T2 signals on magnetic resonance imaging (MRI), a mass suspected of a neurogenic tumor was observed in the foramen ovale and cavernous sinus. Severe atrophy of all masticatory muscles on the right side was observed. This rare case shows trigeminal neuropathy caused by a tumor around the foramen ovale and atrophy of the ipsilateral masticatory muscles. For an accurate diagnosis, it is essential to identify the underlying cause of muscle atrophy with neurologic symptoms present. This can be done through a more detailed clinical examination, including sensory testing and brain MRI, and consider a referral to neurology or neurosurgery for the differential diagnosis of the intracranial disorder.

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Section: Discussionmentioning

confidence: 95%

Focal Atrophy of the Unilateral Masticatory Muscles Caused by Trigeminal Neuropathy from the Tumor in the Foramen Ovale

Hong

Chung

2022

J Oral Med Pain

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show abstract

“…The etiology of PTMN, which is a rather rare neuropathy, is poorly understood. Viral infection was reported the one of the etiological factors for PTMN [2 , [4] , [5] , [6] , [7] , [8] , [9] , [10] . It has been suggested that viral infections and post-viral autoimmune processes may focally affect the motor branch of the trigeminal nerve [2 , 4] .…”

Section: Discussionmentioning

confidence: 99%

“…We evaluated the patient using clinical, biochemical, radiologic, and electrophysiological examinations to diagnose PTMN. There is currently no effective treatment for PTMN [3 , 8] . A previous report suggested that physiotherapy and stabilization splints were effective for the patient [14] .…”

Section: Discussionmentioning

confidence: 99%

“…PTMN is usually diagnosed based on radiological examinations as well as specific clinical features [2 , 3] . Potential etiological factors for PTMN are viral infection, tumor, trauma, stroke, and other unknown causes [2 , [4] , [5] , [6] , [7] , [8] , [9] , [10] . Herein, we describe a rare case of unilateral PTMN accompanied by widespread atrophy of the masticatory muscles.…”

Section: Introductionmentioning

confidence: 99%

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