26th June 2023

A 50-year-old man presents with worsening pain in a cape-like distribution over his shoulders with loss of pain and temperature sense

A 50-year-old man presents with worsening pain in a cape-like distribution over his shoulders with loss of pain and temperature sense and preserved vibration sense. He also complains of swallowing difficulty. He is diabetic and has an implantable insulin pump.

Which choice of investigation would be most appropriate in the immediate period?