By James Hamblin

October 7, 2017

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You are now among the first people to see the brain's lymphatic system. The

vessels in the photo above transport fluid that is likely crucial to

metabolic and inflammatory processes. Until now, no one knew for sure that

they existed.

 

Doctors practicing today have been taught that there are no lymphatic

vessels inside the skull. Those deep-purple vessels were seen for the first

time in images published this week by researchers at the U.S. National

Institute of Neurological Disorders and Stroke.