De Novo Multiple Food Allergy After Liver Transplantation: A Case Report

Food allergy is defined as an immune-mediated response to food. Food allergy after solid organ transplantation was first described in 1997 after liver and kidney transplantation. A three years- five-month-old male was admitted with swelling of the lip after food intake. He had received a liver transplant from a living donor at ten months of age due to biliary atresia. Treatment with tacrolimus and mycophenolate mofetil was monitored, and he was admitted to the emergency department with complaints of swelling of the lip that developed immediately after eating eggs in our department at 20 months of age. No associated respiratory, skin, or gastrointestinal findings were observed in the case, who had previously consumed eggs without problems. Later, after consuming honey and tahini mixture, corn with mayonnaise sauce at different times, swelling developed on his lips and eyes. According to tests, egg, peanut, and hazelnut were excluded from the patient's diet. The case was followed up with diet therapy for two years without any problems. Organ donors should be screened for food allergies to predict the risk of organ recipients for new food allergies after transplantation. Although there is no evidence of food allergies in the donor, it should be kept in mind that new food allergy may develop in patients who have undergone solid organ transplantation, and patients should be followed up in this regard.