[pollen food allergy syndrome in a five-year-old boy after moving house at the foot of the mountain: a case report].

We report the case of a boy with a history of atopic dermatitis starting in infancy. At the age of four, his family moved into a newly built house at the foot of a mountain. One year later, he was diagnosed with Japanese Cedar pollinosis. During the same year, in March, he began to experience oral symptoms, hoarseness, and coughing, after eating multiple types of fruits and vegetables, like soybeans, apples, etc. His tests for Bet v1 and the pathogenesis-related protein-10 (PR-10) of the corresponding foods were positive; accordingly, he was diagnosed with Pollen Food Allergy Syndrome (PFAS). In order to investigate the relationship between pollen and food allergies, we counted the pollen grains dispersed at the patient's house during a period of one year and measured his specific IgE tite...

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