Best practices in contemporary diagnostic immunohistochemistry: panel approach to hematolymphoid proliferations

Christine F Garcia1, Steven H Swerdlow

  • 1Department of Pathology, University of Pittsburgh School of Medicine, Pennsylvania, USA.

Insights

A limited panel of immunohistochemical stains can aid in diagnosing common lymphomas. Interpretation alongside histopathology is crucial for accurate hematopathology evaluations.

Area of Science:

  • Hematopathology
  • Immunohistochemistry
  • Lymphoid Proliferations

Background:

  • Diagnostic hematopathology is complex, even in the molecular era.
  • Immunophenotypic studies and histopathology are critical for evaluating lymphoid proliferations.
  • Immunohistochemistry (IHC) using antibodies on paraffin-embedded tissues is increasingly valuable.

Purpose of the Study:

  • To propose a practical immunohistochemical strategy for evaluating lymphoid proliferations.
  • To highlight the effectiveness of two limited antibody panels for common lymphomas.

Main Methods:

  • Literature review of English-language publications.
  • Focus on studies published between 1990 and 2008.

Main Results:

  • A concise panel of IHC stains can diagnose and subclassify many frequent lymphomas.
  • Case complexity dictates the need for additional or fewer stains.

Conclusions:

  • Limited immunohistochemical panels are effective for common lymphoma diagnoses.
  • Always interpret IHC results within the context of histopathology and other ancillary studies.
Abstract