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KMID : 1035620230110030161
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Allergy Asthma & Respiratory Disease
2023 Volume.11 No. 3 p.161 ~ p.163
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Bird-Egg syndrome diagnosed by ImmunoCap ISAC
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Chung Jae-Eun
David Lee
Hwang Yoon-Ha
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Abstract
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Adult-onset egg allergy is rare compared to child-onset egg allergy, and the component-resolved diagnosis test is effective in evaluating food allergy. We herein report a 24-year-old woman with late-onset egg-yolk allergy diagnosed as bird-egg syndrome. The prolonged exposure to pet parrots' dander or dropping through the respiratory system caused sensitization to the Gal d 5 component and resulted in a cross-reaction to egg yolk. Since the patient was suspected of the syndrome by her history, the skin prick test, ISAC ImmunoCAP, and serum ImmunoCAP test were performed. By confirming Gal d 5 component by ISAC ImmunoCAP, the patient was diagnosed with the syndrome. In patients with newly adult-onset food allergy, the clinician must identify the environmental conditions which can cause cross-sensitization and perform the causative component test.
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KEYWORD
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Bird-egg syndrome, Egg-yolk allergy, α-livetin, Gal d 5, ImmunoCAP, ISAC
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