Arm levitation in multiple system atrophy

A 53‐year‐old woman presented with repetitive involuntary elevation of the left upper limb beyond her shoulder joint. Initially, the symptom was suspected to be due to a functional neurological disorder. Based on the clinical and radiological findings, however, we diagnosed arm levitation associated...

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Bibliographic Details
Published in:Neurology and clinical neuroscience 2024-03, Vol.12 (2), p.110-112
Main Authors: Shimozato, Masaya, Yoshikura, Nobuaki, Kimura, Akio, Otsuki, Mika, Shimohata, Takayoshi
Format: Article
Language:English
Subjects:
arm levitation
Atrophy
Cortex (frontal)
Cortex (motor)
frontoparietal cortex
functional neurological disorder
multiple system atrophy
single‐photon emission computed tomography
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Summary:A 53‐year‐old woman presented with repetitive involuntary elevation of the left upper limb beyond her shoulder joint. Initially, the symptom was suspected to be due to a functional neurological disorder. Based on the clinical and radiological findings, however, we diagnosed arm levitation associated with multiple system atrophy. The mechanism of her arm levitation was suggested to be a disturbance of the right frontal cortex with resultant impairment of the inhibitory mechanisms of the primary motor cortex.
ISSN:2049-4173
2049-4173
DOI:10.1111/ncn3.12780