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Related Experiment Videos

Central nervous system lymphomas: a histologic and immunophenotypic analysis.

S Muzaffar1, M S Siddiqui, I Siddiqui

  • 1Department of Pathology, Aga Khan University Hospital, Karachi.

JPMA. the Journal of the Pakistan Medical Association
|March 13, 2001
PubMed
Summary
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Central Nervous System (CNS) lymphomas are rare, accounting for 4.6% of CNS neoplasms. These typically diffuse lymphomas are predominantly B-cell in origin and more common in the spinal cord than the brain.

Area of Science:

  • Neuropathology
  • Hematopathology
  • Oncology

Background:

  • Non-Hodgkin's lymphomas (NHL) can involve the central nervous system (CNS).
  • Understanding the spectrum of CNS lymphomas is crucial for diagnosis and treatment.

Purpose of the Study:

  • To characterize the morphological subtypes and immunophenotypic status of non-Hodgkin's lymphomas involving the CNS.
  • To determine the incidence and location of CNS lymphomas.

Main Methods:

  • Retrospective analysis of 43 CNS lymphoma cases diagnosed between 1986 and 1996.
  • Review of surgical pathology files and immunophenotypic analysis of selected cases.

Main Results:

  • 43 cases of diffuse non-Hodgkin's lymphomas were identified, representing 4.6% of CNS neoplasms.

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  • Lymphomas were more frequent in the spinal cord (26 cases) than intracranial sites (17 cases).
  • Diffuse large cell lymphoma was the most common subtype (37%), with 84% showing a B-cell phenotype.

    • Conclusions:

    • CNS lymphomas are uncommon, predominantly diffuse, and often of intermediate or high grade.
    • The B-cell phenotype is characteristic of most CNS lymphomas.
    • Spinal cord involvement is more common than intracranial involvement.