19th February 2024

An 82-year-old male presents to the acute medical unit with bilateral arm weakness

An 82-year-old male presents to the acute medical unit with bilateral arm weakness. This progressively worsens throughout the day and with increased activities. Her symptoms resolve with rest. She also reports double vision, predominantly at night. This also resolves entirely in the morning after sleep. Examination reveals diplopia on sustained lateral gaze and reduced power in both upper limbs on repeated movements.

Which of the following auto-antibodies is associated with the underlying condition?

Select the SINGLE most appropriate option from the list below. Select ONE option only.