A Case of Coconut Anaphylaxis

Abstract

Event Abstract Back to Event A Case of Coconut Anaphylaxis ANA M. ACEVEDO1, 2*, ANA M. CELIS1, 2 and RUTH H. RAMIREZ1, 2 1 Antioquia´s University, Allergy, Colombia 2 Grupo de Alergología Clínica y Experimental- (GACE), Colombia INTRODUCTION: The coconut is the fruit of monocot plant Cocosnucifera from the Arecaceae family. Few cases of allergy to coconuts have been reported, and most are mediated by specific immunoglobulin E. There are only two cases reported of anaphylaxis coconut in the pediatric population. The coconutis composed of 25% albumin and 75% globulin and are involved in the reactions to this fruit, asCocn2(7S globulin) and Cocn4(11S globulin). Cross-reactivity betweencoconut, walnuts, hazelnuts and lentils has been described.. OBJECTIVE:To describe a case of anaphylaxis coconut. METHODS: 9-yearold patient, from the Colombian Atlantic coast, with a history of asthma,rhinoconjunctivitis and atopic dermatitis since the early years of life, sensitized to dust mites, dogs and mosquitos; with clinical symptoms from 2 years life consisting of facial angioedema, throat and nasalocular itching within a few minutes of eating fresh coconut. Eating coconut again when 7 years old and there is immediate presence of facial and tongue angioedema, associated with itchy eyes, nasal, pharyngeal and respiratory distress, requiring emergency assistance service. After the last episode, the patient describes nasal ocular symptoms by inhaling vapors from cooking coconut, which are similar to the symptoms described after peanut and pineapple intake. In the diagnostic approach prick tests with coconut commercial extracts and prick-by-prick with fresh samples were performed in triplicate with positive and negative for almond, hazelnut, pistachio, lentils and pineapple. In addition to specific serum immunoglobulin E coconut performed: 23.2 Class 4, Class 312.2 peanuts, pineapple, 0.29 (negative). CONCLUSION: A case of anaphylaxis described by coconut in pediatric population so confirmed mediated Immunoglobulin E coconut and skin tests. Skin tests are useful tool in the diagnosis of this type of allergy. Besides, the use of fresh extract has been described in other studies to give better performance, with about 80.6% specificity and negative predictive value of 78.1% References AllergolImmunopathol (Madr). 2013 Allergy 2002: 57:182–183 Pediatr Allergy Immunol 2010: 21: 1114–1118 Keywords: Coconut, allergy, Anaphylaxis, Immunoglobulin E, Skin Tests Conference: IMMUNOCOLOMBIA2015 - 11th Congress of the Latin American Association of Immunology - 10o. Congreso de la Asociación Colombiana de Alergia, Asma e Inmunología, Medellin, Colombia, 13 Oct - 16 Oct, 2015. Presentation Type: Poster Presentation Topic: Allergy Citation: ACEVEDO AM, CELIS AM and RAMIREZ RH (2015). A Case of Coconut Anaphylaxis. Front. Immunol. Conference Abstract: IMMUNOCOLOMBIA2015 - 11th Congress of the Latin American Association of Immunology - 10o. Congreso de la Asociación Colombiana de Alergia, Asma e Inmunología. doi: 10.3389/conf.fimmu.2015.05.00267 Copyright: The abstracts in this collection have not been subject to any Frontiers peer review or checks, and are not endorsed by Frontiers. They are made available through the Frontiers publishing platform as a service to conference organizers and presenters. The copyright in the individual abstracts is owned by the author of each abstract or his/her employer unless otherwise stated. Each abstract, as well as the collection of abstracts, are published under a Creative Commons CC-BY 4.0 (attribution) licence (https://creativecommons.org/licenses/by/4.0/) and may thus be reproduced, translated, adapted and be the subject of derivative works provided the authors and Frontiers are attributed. For Frontiers’ terms and conditions please see https://www.frontiersin.org/legal/terms-and-conditions. Received: 29 May 2015; Published Online: 14 Sep 2015. * Correspondence: MD. ANA M ACEVEDO, Antioquia´s University, Allergy, Medellín, Colombia, anitaace@hotmail.com Login Required This action requires you to be registered with Frontiers and logged in. To register or login click here. Abstract Info Abstract The Authors in Frontiers ANA M ACEVEDO ANA M CELIS RUTH H RAMIREZ Google ANA M ACEVEDO ANA M CELIS RUTH H RAMIREZ Google Scholar ANA M ACEVEDO ANA M CELIS RUTH H RAMIREZ PubMed ANA M ACEVEDO ANA M CELIS RUTH H RAMIREZ Related Article in Frontiers Google Scholar PubMed Abstract Close Back to top Javascript is disabled. Please enable Javascript in your browser settings in order to see all the content on this page.