Which lab studies are performed to differentiate between primary (clonal) and secondary thrombocytosis?

Updated: Dec 24, 2018
  • Author: Koyamangalath Krishnan, MD, FRCP, FACP; Chief Editor: Srikanth Nagalla, MBBS, MS, FACP  more...
  • Print
Answer

If the clinical presentation does not clearly differentiate between primary (clonal) and secondary thrombocytosis, further tests may be indicated to exclude or confirm a diagnosis of disorders that cause clonal thrombocytosis, as follows:

  • Cytogenetic studies: The presence of the Philadelphia chromosome (Ph) found in chronic myelogenous leukemia (CML) may also be identified using reverse transcriptase-polymerase chain reaction (RT-PCR) to identify the bcr-abl fusion transcript or by using Southern blot analysis for identification of bcr-abl genomic rearrangements.


Did this answer your question?
Additional feedback? (Optional)
Thank you for your feedback!