Rationale: Multiple system atrophy (MSA) is a group of adult-onset sporadic neurodegenerative diseases, mainly classified as MSA-C and MSA-P types. Due to the diversity of clinical symptoms, diagnosis faces a significant challenge. In the present case, we report a patient with isolated vertigo as the first presentation and abnormalities of the oculomotor system as the characteristic manifestations.

Case Concern: A 64-year-old male had dizziness for 1 year, aggravated for 4 months, with accompanying symptoms of unsteady walking. Physical examination revealed spontaneous nystagmus, abnormal ataxic movements, and a broad basal gait. Video nystagmography revealed saccade intrusions and macrosaccadic oscillations, and opsoclonus. Magnetic resonance imaging (MRI) was unremarkable early, and positron emission tomography-computed tomography (PET-CT) announced a reduction in the volume of the cerebellum and brainstem.

Diagnosis: The diagnosis of the possibility of MSA type-C, peripheral neuropathy, hypertension, and lacunar cerebral infarction was performed.

Conclusion: Atypical early clinical presentation may lead to delays, and identifying the critical problem through the patient simple clinical status requires long-term clinical experience and various ancillary examination tools.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10289487PMC
http://dx.doi.org/10.1097/MD.0000000000034008DOI Listing

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