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Related Experiment Videos

Acute lymphoblastic leukemia with eosinophilia.

R S Fishel1, J P Farnen, C A Hanson

  • 1Department of Internal Medicine, University of Michigan, Ann Arbor.

Medicine
|July 1, 1990
PubMed
Summary

Acute lymphoblastic leukemia with eosinophilia is a rare condition. This syndrome, often linked to chromosome abnormalities, presents unique treatment challenges and relapse patterns.

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Area of Science:

  • Hematology
  • Oncology
  • Genetics

Background:

  • Acute lymphoblastic leukemia (ALL) with eosinophilia is a rare clinical entity.
  • Eosinophilia can precede, coincide with, or follow ALL diagnosis.
  • Patients face significant morbidity and mortality from cardiovascular complications of severe eosinophilia.

Observation:

  • Eosinophilia often resolves with leukemia remission but recurs upon relapse.
  • Patients characteristically exhibit cytogenetic abnormalities involving chromosome 5 and 14.
  • These abnormalities are uncommon in typical ALL, suggesting a distinct pathophysiology.

Findings:

  • The affected region on chromosome 5 includes genes regulating hematopoiesis and eosinophilopoiesis.
  • Treatment involves induction chemotherapy, with prednisone and hydroxyurea for persistent eosinophilia.

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  • Genetic alterations in 5q and 14q are key features of this ALL subtype.

    • Implications:

    • Understanding these cytogenetic abnormalities may elucidate the etiology of leukemia and eosinophilia.
    • This research highlights a unique subtype of ALL with specific genetic drivers.
    • Further investigation can lead to targeted therapies for this rare condition.