THROMBOCYTOSIS
PSEUDO-THROMBOCYTOSIS:
   Marked microcytosis
   Shistocytosis
   Cell fragments in leukaemia
 
TRUE THROMBOCYTOSIS:
   BENIGN:
      -Reactive:
          Iron-deficiency anaemia
          Haemorrhage 
          Infections
          Chronic inflammation
          Non-haematological malignancies
          Post-Therapy (Surgery, Treated ITP, Recovery from chemo)
       -Distributive:
          Post-splenectomy
   MALIGNANT:
      Myeloproliferative neoplasms
      Myelodysplastic syndrome: isolated del 5q
      AML with inv(3) or t(3;3)