Armentia A, Pineda F, Martin-Armentia B, Ramos C, Gil Martin FJ, Palacios R. Endophthalmitis related to lemon allergy in a heroin addict.
Allergol Immunopathol (Madr) 2016;
44:472-4. [PMID:
27087565 DOI:
10.1016/j.aller.2015.12.003]
[Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2015] [Revised: 11/17/2015] [Accepted: 12/03/2015] [Indexed: 11/17/2022]
Abstract
BACKGROUND
Heroin and its contaminants may be an important source of allergens in young people. We present a case of severe endophthalmitis in a patient that also suffered from anaphylactoid symptoms (hypotension, urticaria, glottic oedema) whenever he ingested lemon.
METHODS
Prick tests with a battery of 42 aeroallergens including fruits and citrus fruits (orange, mandarin, grapefruit and lemon) and specific IgE to these allergens were carried out. Immunodetection was performed using the patient's serum and the following allergens: lemon, Candida, Aspergillus, Penicillium and Alternaria recombinant Alt 1 (Laboratories Diater).
RESULTS
Skin tests were negative for Candida, Penicillium, Aspergillus and Cladosporium (ALK-Spain) as were specific IgE antibodies for CAP (Thermofisher, Sweden) and positive only for lemon and, doubtfully, to Candida. Specific IgE tests to pollen, arthropods, fungi, dander and foods were positive only for lemon (0.49kU/L). Serological study of fungi ruled out fungal infection at that time. The immunodetection showed that the patient's serum recognised a protein of approximately 25kDa of lemon peel, one of approximately 12-13kDa of Penicillium, and perfectly recognised Alt a 1.
CONCLUSIONS
Lemon surface can be contaminated by Candida and other fungi. In heroin addicts with positive skin tests for lemon, the possibility of these serious complications should be taken into account.
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