[Allergic reaction after ingestion of pancakes].

Buckwheat is increasingly used in food and pillows in Europe and is a potent potential allergen when ingested or inhaled. A 74-year-old Danish woman experienced anaphylaxis after ingesting industrially manufactured pancakes. She was IgE-sensitized and was persistently asymptomatic after allergen elimination. A thorough medical history is pivotal to identify untraditional allergens that can evoke severe allergic reactions.