Chronic Nk-Cell Lymphocytosis, also known as chronic lymphoproliferative disorder of nk-cells, is related to aggressive nk-cell leukemia and chronic lymphoproliferative disorder of natural killer cells, and has symptoms including fever An important gene associated with Chronic Nk-Cell Lymphocytosis is B3GAT1 (Beta-1,3-Glucuronyltransferase 1), and among its related pathways/superpathways are Immunoregulatory interactions between a Lymphoid and a non-Lymphoid cell and Hematopoietic Stem Cells and Lineage-specific Markers. Affiliated tissues include nk cells and skin.