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In her article on Guillain-Barré syndrome (GBS) in the August issue, Jane Pritchard repeats the age-old neurological dogma that areflexia is part of the “essential diagnostic criteria”.1 But she does not mention that preserved or exaggerated reflexes do not exclude the diagnosis. I was unaware of this until I examined an exception to the rule last year.
A 59 year old man was admitted with deteriorating weakness, 10 days after a meal of undercooked chicken, followed by diarrhoea, with two positive Clostridium jejuni stool samples. He …