7th June 2021

A 64-year-old man presents to A&E with sudden onset upper back pain

A 64-year-old man presents to A&E with sudden onset upper back pain and bilateral leg weakness. These symptoms came on suddenly several hours ago, with no associated trauma. The doctor performs a neurological examination, the findings of which lead them to suspect anterior spinal artery syndrome.

Which THREE of the following examination findings would support a diagnosis of anterior spinal artery syndrome? Select THREE options only.