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Related Experiment Videos

Vaccination-induced cutaneous pseudolymphoma.

Eve Maubec1, Laure Pinquier, Manuelle Viguier

  • 1Institut de Recherche sur la Peau, Université Paris 7, Paris, France.

Journal of the American Academy of Dermatology
|March 29, 2005
PubMed
Summary

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Late-onset skin lesions, including cutaneous pseudolymphoma, can occur after vaccinations. These reactions involve lymphoid hyperplasia and may contain vaccine components like aluminum, warranting further study.

Area of Science:

  • Dermatology
  • Immunology
  • Vaccinology

Background:

  • Late-onset chronic skin lesions post-vaccination are rare.
  • This study reports on nine patients with cutaneous and subcutaneous pseudolymphoma following vaccination.

Purpose of the Study:

  • To investigate the characteristics of late-onset chronic skin lesions after vaccination.
  • To identify potential causes and components within these lesions.

Main Methods:

  • Histopathologic and immunohistochemical analysis of skin biopsy specimens.
  • Molecular analysis of B-cell and T-cell clonality.
  • Investigation of vaccine product presence using histochemistry, microanalysis, and electron microscopy.

Main Results:

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  • Lesions showed dermal and hypodermal lymphocytic infiltrates with germinal centers (B cells and CD4+ T cells).
  • Molecular analysis revealed polyclonal B-cell and T-cell populations.
  • Aluminum deposits were detected in all cases; vaccine components were confirmed in one case.

Conclusions:

  • Cutaneous lymphoid hyperplasia is a potential adverse reaction to vaccinations containing adjuvants like aluminum hydroxide.
  • Further research is needed to determine the incidence of this complication in vaccinated populations.