A 34‑year‑old woman presents with intermittent double vision…
Questions
A 34‑yeаr‑оld wоmаn presents with intermittent dоuble vision аnd drooping of her eyelids that worsen toward the end of the day. She reports difficulty chewing and speaking after prolonged talking, but notes that her symptoms improve after resting. Physical examination reveals bilateral ptosis and proximal muscle weakness that worsens with repeated testing. Sensation and reflexes are normal. Which diagnosis best explains this patient’s symptoms?