A patient presents with a platelet count of 700 x 109/L with abnormalities in size, shape and granularity of platelets. WBC count is 12 x 109/L, hemoglobin is 11g/d1 and Philadelphia chromosome is absent. The most likely diagnosis would be:
Polycythemia vera Essential thrombocythemia Chronic myeloid leukemia Leukemoid reactionLymphomas & Chronic