Relacionar Columnas polycythemia veraVersión en línea information about thus blood cancer por Kennedy Ellis 1 polycythemai vera 2 the mutation in which gene causes this blood cancer 3 drawing blood 4 enlarged spleen 5 what do you experience? 6 what does polycythemia cause? heart attack or stroke helps fight infection and filter unwanted material and gets bigger when there is too much RBCs janus kinase 2 (JAK2) helps reduce # of RBCs increased number of red blood cells itchiness, headches, dizziness, bleeding/bruising, weakness, fatigue