Anaphylaxis after prick-to-prick test with fish.

Skin prick testing is the diagnostic procedure for allergies and is considered to be safe. It is usually performed using the prick and the prick-to-prick method. Herein is described a pediatric case of anaphylaxis during prick-to-prick testing with raw fish in a patient who had consumed fish without any systemic allergic reactions beforehand, to illustrate that skin prick testing should be carefully planned and performed with caution in order to avoid potentially serious risks for the patient.