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Lymph node cytology.

Rick L Cowell1, Karen E Dorsey, James H Meinkoth

  • 1Department of Veterinary Pathobiology, College of Veterinary Medicine, Oklahoma State University, 250 McElroy Hall, Stillwater, OK 74078-2007, USA. rlcowel@okstate.edu

The Veterinary Clinics of North America. Small Animal Practice
|January 7, 2003
PubMed
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Lymph node cytology is a quick and effective method for diagnosing enlarged lymph nodes (lymphadenopathy). This technique, using fine-needle aspiration biopsy, provides valuable diagnostic information when lymph nodes are abnormal.

Area of Science:

  • Veterinary Medicine
  • Cytopathology

Background:

  • Lymphadenopathy, or enlarged lymph nodes, can indicate various underlying conditions.
  • Accurate diagnosis is crucial for effective treatment and patient management.

Purpose of the Study:

  • To highlight the utility and ease of lymph node cytology in diagnosing lymphadenopathy.
  • To provide guidance on optimal sampling techniques for lymph node evaluation.

Main Methods:

  • Cytologic samples obtained via fine-needle aspiration biopsy (FNAB) or nonaspiration fine-needle biopsy.
  • Imprints or scrapings from surgically removed or necropsied lymph nodes.

Main Results:

  • Lymph node cytology is a rapid, straightforward, and informative diagnostic procedure.

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  • Effective for evaluating single, multiple, or generalized lymphadenopathy.

    • Conclusions:

    • Lymph node cytology is an excellent diagnostic tool for lymphadenopathy.
    • Sampling multiple enlarged nodes and selecting appropriate sites (away from inflammation) improves diagnostic yield.
    • Cytology is not beneficial when lymph nodes are not enlarged.