19th February 2024

A 65-year-old male presents to the acute medical unit with confusion and a 4-hour history of vertigo and slurred speech.

A 65-year-old male presents to the acute medical unit with confusion and a 4-hour history of vertigo and slurred speech. He was also found to have been stumbling around the home prior to the arrival of the ambulance. On examination, he had a right-sided facial droop along with dysarthria. He was also noted to have a GCS of 12/15 on arrival at the hospital with E3V4M5. He had a mild right-sided weakness affecting his right upper and lower limbs. 

Which of the following blood vessel occlusion would explain the symptoms experienced?