[Acute recurring Quincke edema in allergy to malt extract].

The case is reported of a 19-year-old patient with recurrent Quincke edema with systemic symptoms. Based on observations of the course, diary entries and specific skin tests (scratch), sensitization to malt extract from germinated barley was diagnosed. The allergic reactions usually occurred after consumption of malt-containing chocolate drinks and malt-containing snack products. In cooperation with Prof. S. G. O. JOHANSSON, Stockholm, we have for the first time identified specific serum IgE antibodies against malt extract.