An area of the brain where tumor cells shelter from chemotherapy in childhood leukaemia

Sometimes, the central nervous system harbours tumour cells that elude treatment and thus become one of the main sources of relapse. Research led by the Complutense University of Madrid has identified one of these locations in which the cells remain protected: the stroma of the choroid plexus, a structure in the brain ventricles responsible for the production of cerebrospinal fluid.