[Anaphylactic shock due to French galette. Type I allergic reaction to buckwheat].

A 37-year-old woman twice developed a life-threatening anaphylactic reaction after eating galettes, a special French pancake from Brittany. She had tolerated ordinary pancakes and crepes for many years. The allergological work-up revealed a Type I allergic reaction to buckwheat contained in the galettes. A prick test to buckwheat was positive and specific IgE antibodies to buckwheat were found in her serum. In contrast to wheat, buckwheat is not a cereal but a gluten-free knot-grass, initially from Asia. Whenever a patient suffers from allergic reactions due to pastries, a buckwheat allergy should be considered.