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Hypersensitivity to mercuric fluorescein compounds
P Barranco Sanz1, F Martín Muñoz, C López Serrano
1Servicio de Alergia, Hospital La Paz, Madrid, Spain.
Allergologia Et Immunopathologia
|July 1, 1989
Summary
Mercurial compounds can cause allergic reactions. This study details two rare cases of immediate hypersensitivity, including anaphylaxis, and one case of delayed hypersensitivity to mercurial compounds.
Area of Science:
- Immunology
- Dermatology
Background:
- Mercurial compounds are recognized allergens, frequently causing allergic contact dermatitis.
- Immediate hypersensitivity reactions to organic mercurial derivatives are uncommon in published literature.
Observation:
- Two patients, a child and an adult woman, presented with severe hypersensitivity reactions after topical Merbromin (Merbromine) application.
- The child developed urticaria, while the woman experienced anaphylaxis.
Findings:
- Both patients demonstrated immediate hypersensitivity to mercuric fluorescein compounds, confirmed by skin tests and histamine release assays.
- The child also exhibited delayed hypersensitivity to mercurial compounds, a dual reaction not previously reported together.
Implications:
- This study highlights the potential for both immediate and delayed hypersensitivity to mercurial compounds.
- It underscores the importance of considering a broader spectrum of hypersensitivity reactions to topical mercury-based antiseptics.