A 30-year-old woman presents with ptosis, diplopia, and fluctuating limb weakness. EMG shows decremental response on repetitive nerve stimulation. Which is the most likely diagnosis?

A 25-year-old patient presents with episodes of loss of consciousness and staring spells. EEG shows 3 Hz generalized spike-and-wave discharges. Indicate the type of seizure does this pattern suggest?

Which of the following best explains the use of EMG in diagnosing neuromuscular junction disorders?

A patient presents with sudden hearing loss and vertigo. Auditory testing shows absent cochlear microphonics. Indicate structure is most likely affected.

A patient has gradual peripheral vision loss, high intraocular pressure, and optic disc cupping. Infer the primary pathophysiological mechanism.

A patient presents with sudden-onset left-sided weakness. CT scan shows no hemorrhage. Which imaging modality is most appropriate next to identify acute ischemic stroke?

In the evaluation of a patient with suspected peripheral neuropathy, which combination of tests best differentiates between demyelinating and axonal neuropathies?

Which of the following imaging findings is most indicative of multiple sclerosis?

Which evoked potential is most sensitive in detecting early optic nerve demyelination in multiple sclerosis?