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Case Report

Occupational buckwheat allergy in a health food store employee: From inhalative exposure to anaphylaxis

Julia Felicitas Pilz, Valentina Faihs, Claudia Kugler, Ulf Darsow, Tilo Biedermann, and Knut Brockow

Volume 9 (2025) p. 47 - 49

Case Report

Resolution of childhood wheat allergy through evolution into WALDA? A case report

Charlotte J. Kiani, Valentina Faihs, Claudia Kugler, Julia F. Pilz, Tilo Biedermann, and Knut Brockow

Volume 10 (2026) p. 114 - 119

Abstract

Allergologie select, Vol. 10/2026 (114-119)

Resolution of childhood wheat allergy through evolution into WALDA? A case report

Charlotte J. Kiani¹, Valentina Faihs¹, Claudia Kugler¹, Julia F. Pilz¹, Tilo Biedermann¹, and Knut Brockow¹,²

¹Department of Dermatology and Allergy, Technical University of Munich, TUM School of Medicine and Health, Munich, Germany, and ²Department of Dermatology and Allergy Centre, Odense University Hospital, Odense, Denmark
Background: Wheat allergy may present with different phenotypes. Childhood-onset wheat allergy is characterized by immediate-type IgE-mediated reactions to wheat ingestion alone. It typically affects atopic individuals and often resolves spontaneously. The predominant adult-onset phenotype is WALDA (wheat allergy dependent on augmentation factors), triggered only when wheat is consumed in combination with augmentation factors. Phenotypic transition between these forms is rarely described. Case report: We present the case of a 30-year-old atopic female patient with a history of wheat-induced anaphylaxis, who presented with three distinct stages, compatible with a phenotypic transition. In infancy, the patient was diagnosed with classical IgE-mediated wheat allergy. In early adulthood, she developed augmentation factor-dependent reactions compatible with WALDA. At the age of 30, comprehensive oral food challenge testing and serological analysis revealed full clinical tolerance and loss of sensitization. Conclusion: This case illustrates a possible transient clinical course of wheat allergy with WALDA as an intermediate stage prior to resolution. Such cases may be underreported, as patients with declining wheat allergy may not be identified as having WALDA reactions, but rather as having inconstant reactivity. Allergy reassessment in adult patients with food allergy in childhood is essential to detect phenotypic shifts or to confirm resolution.Correspondence to:
Dr. med. Valentina Faihs, Department of Dermatology and Allergy, Technical University of Munich, TUM School of Medicine and Health, Biedersteiner Str. 29, 80802 Munich, Germany
Email: [email protected]

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