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Brown-Séquard syndrome, also known as Brown-Séquard's hemiplegia and Brown-Séquard's paralysis, is a loss of motricity (paralysis and ataxia) and sensation caused by the lateral hemisection of the spinal cord. Other synonyms are crossed hemiplegia, hemiparaplegic syndrome, hemiplegia et hemiparaplegia spinalis and spinal hemiparaplegia.
Additional recommended knowledge
The hemisection of the cord results in a lesion of each of the three main neural systems:
As a result of the injury to these three main brain pathways the patient will present with three lesions.
Brown-Séquard syndrome may be caused by a spinal cord tumor, trauma (such as a gunshot wound or puncture wound to the neck or back), ischemia (obstruction of a blood vessel), or infectious or inflammatory diseases such as tuberculosis, or multiple sclerosis.
It was first described in 1850 by the historically famous British neurologist Charles-Édouard Brown-Séquard (1817-1896), who studied the anatomy and physiology of the spinal cord.  Brown-Séquard was quite a controversial and eccentric figure, and is also known for self-reporting "rejuvenated sexual prowess after eating extracts of monkey testis". The response is now thought to have been a placebo effect, but apparently this was "sufficient to set the field of endocrinology off and running."
Interestingly, many nations claim him as their own, he was the son of an American sea captain and a French woman, living in a British territory. He studied in the US, France, as well as the UK. He described this injury which resulted from caning knives trauma in Mauritius.
|This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Brown-Séquard_syndrome". A list of authors is available in Wikipedia.|