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From Idiopathic to Identifiable: Oral Mite Sensitization Revealed by Component-Resolved Diagnostics
Serkan Arslan1, Meryem Özçelik1, Ahmet Sert1
1Division of Allergy and Immunology, Department of Pediatrics, Basaksehir Cam and Sakura City Hospital, Istanbul, Turkey.
Pediatric Allergy, Immunology, and Pulmonology
|May 5, 2026
Summary
Oral mite anaphylaxis (OMA) is a rare cause of anaphylaxis triggered by dust mites in food, often worsened by exercise. This case highlights OMA in a child with wheat-based meals and physical activity, emphasizing diagnosis and management.
Area of Science:
- Allergy and Immunology
- Pediatric Anaphylaxis
- Food Hypersensitivity
Background:
- Oral mite anaphylaxis (OMA) is an uncommon food-induced anaphylaxis.
- House dust mites contaminating food are the cause.
- Exercise can act as a cofactor, mimicking food-dependent exercise-induced anaphylaxis (FDEIA).
Purpose of the Study:
- To describe a case of OMA in a pediatric patient.
- To highlight the diagnostic challenges and importance of component-resolved diagnostics (CRD).
- To emphasize OMA as a consideration in exercise-related anaphylaxis.
Main Methods:
- Case report of a 14-year-old boy with recurrent anaphylaxis.
- Clinical history, physical examination, skin prick testing, specific IgE, and multiplex component testing.
- Evaluation for immunodeficiency and asthma assessment.
Main Results:
- Anaphylaxis episodes occurred after wheat-based meals followed by exercise.
- Negative wheat-specific IgE but strong sensitization to house dust mites.
- Diagnosis of OMA confirmed; patient improved with management and follow-up.
Conclusions:
- OMA should be considered in children with exercise-related anaphylaxis, especially after wheat consumption.
- CRD is crucial for accurate diagnosis.
- Effective management includes patient education, asthma control, and preventive measures.
