part of part of B cell lymph node mantle zone B cell mantle zone B cell mantle zone B cell of lymph node This is a general grouping term created for use in the EMBL-EBI Single Cell Expression Atlas anatomograms. Please use a more specific cell type term for annotation if possible, given the information available to you. A B lymphocyte that resides in the mantle zone of the lymph node germinal center. These are generally IgM and IgD positive activated B cells that form a 'corona' around the germinal center and are part of the establishment of a secondary lymphatic follicule. lymph node germinal center mantle zone