26th August 2024

A 31-year-old man is brought in following an assault with multiple stab wounds all over his body

A 31-year-old man is brought in following an assault with multiple stab wounds all over his body. He is stabilised hemodynamically and transferred to the trauma ward. You have been asked to review him due to ongoing weakness in his right leg. You note marked right lower limb weakness but full power on the left side. On sensory examination, you note normal responses to painful stimuli on the right, but this is impaired on the left. Vibration sensation and proprioception are impaired in the right leg and normal in the left. Examination of the arms and cranial nerves is normal. Where’s the lesion?

Select the SINGLE most appropriate option from the list below. Select ONE option only.