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[Persistent polyclonal B-cell lymphocytosis].

Troussard1, H Mossafa, G Flandrin

  • 1Laboratoire d'hématologie, CHU Côte-de-Nacre, 14000 Caen, France.

Annales De Biologie Clinique
|June 7, 2002
PubMed
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Persistent polyclonal B-cell lymphocytosis (PPBL) is a rare condition primarily affecting women, often smokers. Recognizing its benign nature and specific cell markers is crucial to avoid unnecessary aggressive treatments.

Area of Science:

  • Hematology
  • Immunology
  • Genetics

Context:

  • Persistent polyclonal B-cell lymphocytosis (PPBL) is a rare hematologic disorder.
  • Diagnosis is predominantly in women, often smokers, with chronic absolute lymphocytosis (> 4 x 10^9/L).

Purpose:

  • To describe the key diagnostic features and clinical course of PPBL.
  • To highlight the importance of accurate diagnosis for appropriate patient management.

Summary:

  • PPBL is characterized by atypical binucleated lymphocytes in peripheral blood.
  • Patients exhibit polyclonal serum IgM, frequent HLA-DR7 expression, and polyclonal B cells with kappa/lambda light chains.
  • A recurrent chromosomal abnormality, +i(3q), is observed in 77% of cases.

Impact:

Related Experiment Videos

  • Accurate identification of PPBL can prevent the need for aggressive therapies.
  • Understanding the benign clinical course is essential for avoiding overtreatment.