A genuine network of lymphatic vessels can be found in the dural layer of the meninges that ensheathe the brain and spinal cord of mammalians. In this issue, Jacob et al. (2022. J. Exp. Med.https://doi.org/10.1084/jem.20220035) employ light sheet fluorescence imaging of intact mouse heads to provide a more comprehensive chart of the meningeal lymphatic vasculature and draw a parallel between lymphatic drainage of cerebrospinal fluid in mice and humans.
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