MSFinals-3067

MSFinals-3067

A 65-year-old woman presents to her general practitioner (GP) with unsteadiness on her feet and frequent falls of two days’ duration.
On examination, she is noted to have loss of sensation and weakness of the proximal and distal muscles of the left lower limb. Her upper limbs and face have no weakness or sensory deficit.
Her GP refers her to the nearest Stroke Unit for assessment and management. Computed tomography (CT) scan confirms a thromboembolic cerebrovascular accident.
Which vessel is most likely to have been involved?