Structural and functional features of central nervous system lymphatic vessels

The central nervous system undergoes constant immune surveillance, but the route that immune cells take to exit the brain has been unclear as it had been thought to lack a classical lymphatic drainage system; here functional lymphatic vessels able to carry both fluid and immune cells from the cerebrospinal fluid are shown to be located in the brain meninges. The central nervous system is under constant immune surveillance, but the exit route for...