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Related Experiment Videos

Hairy cell leukemia: diagnostic pathology.

Robert W Sharpe1, Kelly J Bethel

  • 1Department of Pathology, Scripps Clinic, 10666 North Torrey Pines Road, La Jolla, CA 92037, USA. sharpe.robert@scrippshealth.org

Hematology/Oncology Clinics of North America
|September 23, 2006
PubMed
Summary

This review focuses on diagnosing Hairy Cell Leukemia (HCL) and differentiating it from similar B-cell disorders like HCL-Variant (HCL-V) and Splenic Marginal Zone Lymphoma (SMZL). Accurate HCL diagnosis is crucial due to its unique treatment response.

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Area of Science:

  • Hematopathology
  • Oncology
  • Immunology

Background:

  • Hairy Cell Leukemia (HCL) is a rare B-cell lymphoproliferative disorder.
  • Distinguishing HCL from other B-cell malignancies is essential for appropriate patient management.
  • HCL exhibits unique clinical and pathological features.

Purpose of the Study:

  • To review the diagnostic hematopathology of HCL.
  • To emphasize the critical distinction between HCL and other B-cell lymphoproliferations, particularly HCL-V and SMZL.
  • To highlight the reliable diagnostic features of HCL.

Main Methods:

  • Review of existing literature on HCL pathology.
  • Analysis of cytologic, histologic, cytochemical, and immunologic features.
  • Comparison of HCL with HCL-V and SMZL.

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Main Results:

  • HCL possesses consistent features aiding reliable classification.
  • Distinguishing HCL from HCL-V and SMZL is critical due to HCL's unique treatment responsiveness to agents like 2-CdA.
  • Differential diagnosis between SMZL and HCL-V is less critical despite diagnostic challenges.

Conclusions:

  • Hematopathology provides reliable criteria for HCL diagnosis.
  • Accurate differentiation of HCL impacts therapeutic decisions.
  • While SMZL and HCL-V share features, their distinction is not clinically critical.