11. Mutations in Jak2 kinases associated with EpoR can also lead to polycythemia vera. 12. The dark red color skin of the newborn with harlequin signs indicates polycythemia . 13. Patients with polycythemia vera are prone to the development of blood clots ( thrombosis ). 14. Following the 1990 season, he became ill with a serious spleen disease, polycythemia . 15. This is in contrast with myelofibrosis that develops secondary to polycythemia vera or essential thrombocythaemia. 16. Partial exchange might be required for polycythemia . 17. It can also be associated with other conditions, such as SLE or polycythemia rubra vera. 18. This results in polycythemia , abnormally increased numbers of circulating red blood cells and an elevated hematocrit. 19. A classic symptom of polycythemia vera ( and the related myeloproliferative disease essential thrombocythemia ) is erythromelalgia. 20. Some familial forms of polycythemia vera are noted, but the mode of inheritance is not clear.
