28th May 2025

A 55-year-old man has noticed some painful sensation in his legs at night, reduced sensation in his feet, urinary frequency, and balanitis.

A 55-year-old man has noticed some painful sensation in his legs at night, reduced sensation in his feet, urinary frequency, and balanitis. He has a small area of painless ulceration on his big toe. He has a raised BMI. Nerve conduction studies show reduced motor conduction velocity, and EMG shows positive sharp waves and fibrillations.

Select the SINGLE most likely diagnosis from the list below. Select ONE option only.