Thrombocytosis, also known as thrombocythaemia, is related to refractory anemia and essential thrombocythemia. An important gene associated with Thrombocytosis is JAK2 (Janus Kinase 2), and among its related pathways/superpathways are Innate Immune System and Signal Transduction. The drugs Anagrelide and Benzocaine have been mentioned in the context of this disorder. Affiliated tissues include myeloid and bone marrow, and related phenotypes are homeostasis/metabolism and immune system