scholarly journals Clinical relevance of positive patch test reactions to lanolin: A ROAT study

2020 ◽  
Vol 84 (1) ◽  
pp. 41-49
Author(s):  
Ada Uldahl ◽  
Malin Engfeldt ◽  
Cecilia Svedman
Keyword(s):  
Patch Test ◽  
Clinical Relevance ◽  
Positive Patch Test ◽  
Test Reactions

scholarly journals Clinical relevance of positive patch test reactions to the 26 EU-labelled fragrances

2009 ◽  
Vol 61 (4) ◽  
pp. 217-223 ◽  
Author(s):  
Eleonoor J. van Oosten ◽  
Marie-Louise A. Schuttelaar ◽  
Pieter Jan Coenraads
Keyword(s):  
Patch Test ◽  
Clinical Relevance ◽  
Positive Patch Test ◽  
Test Reactions

Polysensitization in Recurrent Lip Dermatitis

2015 ◽  
Vol 19 (1) ◽  
pp. 77-80 ◽  
Author(s):  
Kathleen Fraser ◽  
Melanie Pratt
Keyword(s):  
Case Report ◽  
Contact Dermatitis ◽  
Allergic Contact Dermatitis ◽  
Patch Test ◽  
Patch Testing ◽  
Clinical Relevance ◽  
Positive Patch Test ◽  
Test Reactions ◽  
Allergic Contact

Background: In allergic contact dermatitis (ACD), polysensitization consists of positive patch test reactions to three or more unrelated allergens. Objective: The purpose of this case report is to document a 27-year-old female with recurrent lip dermatitis, polysensitization, and reactions to a number of clinically relevant exposures. Methods: Patch testing results revealed positive reactions to tixocortol-21-pivalate (3+), lanolin (3+), neomycin (3+), nickel (1+), hydroxyethyl methylacrylate (3+), bacitracin (3+), and abitol (3+). Results: The patient had seven positive reactions, meeting the criteria for polysensitization. Of known clinical relevance, the patient had applied lanolin-containing lip balms and hydrocortisone- and bacitracin-containing products to the lips, all of which she was strongly reactive to on patch testing. Conclusion: Polysensitization occurs when three or more unrelated allergens are positive on patch testing. This case highlights the importance of considering polysensitization in ACD as numerous allergens that were positive on patch testing were clinically relevant.

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