Until a few years ago, scientists did not realize that the brain had lymphatic vessels that help it to get rid of excess fluid and waste materials.

They have since discovered that the brain uses lymphatic vessels to drain away waste in cerebrospinal fluid (CSF).

However, the underlying mechanisms and transport routes for draining CSF from the brain have been unclear.

In the new study, researchers from the Korea Advanced Institute of Science and Technology (KAIST) and the Center for Vascular Research, both in Daejeon, South Korea, investigated a group of lymphatic vessels located in the basal parts of the skull.

A recent Nature paper describes how they used special MRI scans to track CSF through lymphatic vessels in rodents.

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