When should myasthenia gravis be considered in a patient with weakness of eye movements?

A: Only when the pattern fits a IIIrd cranial nerve palsy

B: Only when the pattern fits a IVth cranial nerve palsy

C: Only when the pattern fits a VIth cranial nerve palsy

D: When the pattern cannot be readily fitted into a IIIrd, IVth, or VIth cranial nerve palsy (and even when it can)

Always consider myasthenia gravis when the pattern of weakness of eye movements cannot be readily fitted into a IIIrd, IVth, or VIth cranial nerve palsy (and even when it can). Myasthenia gravis can present with variable and fluctuating muscle weakness, making it difficult to fit into the typical patterns of cranial nerve palsies.

When should myasthenia gravis be considered in a patient with weakness of eye movements?

When should myasthenia gravis be considered in a patient with weakness of eye movements?

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