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Year : 2022  |  Volume : 8  |  Issue : 3  |  Page : 159-162

Isolated axial lateropulsion caused by an acute lateral medullary infarction involving the dorsal spinocerebellar tract: A case report

1 Department of Neurosciences, Division of Neurology with Stroke Unit, A.O. “San Pio,” P.O. “G. Rummo,” Benevento, BN, Italy
2 Department of Neurosciences, Neuroradiology Unit, A.O. “San Pio,” P.O. “G. Rummo,” Benevento, BN, Italy

Correspondence Address:
Marco Sparaco
Department of Neurosciences, Division of Neurology with Stroke Unit, A. O. “San Pio,” P.O. “G. Rummo,” Via Dell'Angelo 1, 82100 Benevento, BN
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/bc.bc_39_22

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Lateral medullary syndrome encompasses a broad spectrum of symptoms and signs depending on the bulbar localization of the lesion. Body lateropulsion (BL) can occur without vestibular and cerebellar symptoms, as a unique manifestation of a lateral medullary infarction. However, it is relatively rare and challenging to diagnose. We report a case of a 72-year-old woman who presented with a tendency to fall to the right. She denied having vertigo, cerebellar signs, sensory loss, or motor weakness. No signs of vestibular dysfunction were found on the ENT examination. Neurological evaluation was unremarkable, except for mild ataxia of the right limbs along with BL to the right side when standing and walking. Brain magnetic resonance (MR) imaging showed an acute small infarct in the right lateral aspect of the medulla extending from the rostral to the caudal level. MR angiography found no stenosis or vascular occlusions. We believe that ipsilateral axial lateropulsion shown by our patient may be related to a selective ischemic lesion of the dorsal spinocerebellar tract in its medullary course. A lateral medullary infarction should be seriously considered in patients who present with isolated BL without further signs of bulbar involvement.

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