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Histiocytic necrotizing lymphadenitis.

T Shirakusa1, T Eimoto, M Kikuchi

  • 1Second Department of Surgery, School of Medicine, Fukuoka University, Japan.

Postgraduate Medical Journal
|February 1, 1988
PubMed
Summary
This summary is machine-generated.

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Histiocytic necrotizing lymphadenitis presents with tenderness, fever, and low white blood cell count, often with a good prognosis. Lymph node biopsy is crucial for diagnosis, revealing focal necrosis and characteristic ultrastructural inclusions.

Area of Science:

  • Pathology
  • Immunology
  • Infectious Diseases

Background:

  • Histiocytic necrotizing lymphadenitis, also known as Kikuchi-Fujimoto disease, is a rare, benign condition.
  • It is often misdiagnosed, particularly as tuberculous lymphadenitis or malignant lymphoma.
  • Accurate diagnosis is essential for appropriate patient management and to avoid unnecessary treatments.

Purpose of the Study:

  • To describe the clinical, histological, and ultrastructural features of histiocytic necrotizing lymphadenitis.
  • To highlight diagnostic challenges and emphasize the importance of lymph node biopsy.
  • To differentiate this condition from other lymphadenopathies.

Main Methods:

  • Retrospective analysis of eleven cases of histiocytic necrotizing lymphadenitis.

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  • Review of clinical presentations, laboratory findings, and imaging studies.
  • Histopathological examination of lymph node biopsies, including ultrastructural studies.

    • Main Results:

    • Common symptoms included local tenderness, fever, and leukocytopenia.
    • Four cases were initially misdiagnosed as cervical tuberculous lymphadenitis.
    • Histological examination revealed focal necrosis without neutrophil infiltration; ultrastructural studies showed tubulo-reticular structures in histiocytes and lymphocytes.
    • Elevated Epstein-Barr virus antibodies were noted in 2 of 3 tested cases.

    Conclusions:

    • Histiocytic necrotizing lymphadenitis has characteristic clinical and pathological features that aid in diagnosis.
    • Lymph node biopsy is indispensable for differentiating it from tuberculosis and lymphoma.
    • The presence of tubulo-reticular structures is a key ultrastructural finding.