A man has ascending symmetrical leg weakness with absent reflexes two weeks after a diarrhoeal illness. What is the most likely diagnosis?
Answer and explanation
Correct answer: D. Guillain-Barre syndrome
- Step 1: The picture of ascending weakness with areflexia after an infection fits Guillain-Barre syndrome.
Answer
Guillain-Barre syndrome.
Why not the others: 'Acute transverse myelitis': it gives a sensory level and bladder involvement with brisk reflexes. 'Myasthenia gravis': it causes fatigable weakness without sensory loss or areflexia. 'Spinal cord compression': it gives upper motor neurone signs below a level.
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