Two Cases of Oral Allergy Syndrome to “Fukinoto”

Abstract

“Fukinoto” is a wild vegetable and often eaten with all of its pollen as “tempura-style”. We reported two cases of oral allergy syndrome to “Fukinoto”. In the skin prick test, a positive reaction was observed for the pollen of “Fukinoto” in both cases, and, in Case 2, the reaction was also positive for heated pollen. In immunoblotting, we detected bands at 15 kDa and 20 kDa, possibly corresponding to pollen allergens. From these findings, we suspect that the pollen in “Fukinoto” contains an allergen and that the patients were sensitized directly through the oral mucosa.