Q1- A 50-year-old woman presented with a 4-week history of intermittent pain and numbness in her left hand. She had noticed that her hand became pale at times, particularly in the cold. She had started haemodialysis via a left brachial fistula 2 months previously. The symptoms in her left hand were worse during dialysis.Pain and fine-touch sensation were reduced in the thumb and first two fingers of her left hand.What is the most likely diagnosis? *