mrcem2-0411

A 45-year-old man presents with a history of gradually worsening left-sided hearing loss and tinnitus. He also reports occasional episodes of dizziness. During the examination, his hearing is significantly reduced in the left ear, and the Weber’s test shows lateralization to the right. Additionally, he experiences tingling sensations on the left side of his face and has decreased sensation on that side. The rest of his cranial nerve examination appears normal.

What is the SINGLE most probable diagnosis?