LATE REACTION, PERSISTENT REACTION AND DOUBTFUL ALLERGIC REACTION: THE PROBLEMS OF INTERPRETATION

The standard method of patch test reading is to read the test site for any positive allergy at 48 hr and then again at 72/96 hr. A late reading on the seventh day is also advised to exclude the irritant reaction (IR) and to notice some delayed development of allergic reaction. However, multiple visi...

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Detalles Bibliográficos
Autor principal: Sarma, Nilendu
Formato: Texto
Lenguaje:English
Publicado: Medknow Publications 2009
Materias:
Case Report
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2800873/
https://www.ncbi.nlm.nih.gov/pubmed/20049272
http://dx.doi.org/10.4103/0019-5154.48989
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author Sarma, Nilendu
author_facet Sarma, Nilendu
author_sort Sarma, Nilendu
collection PubMed
description The standard method of patch test reading is to read the test site for any positive allergy at 48 hr and then again at 72/96 hr. A late reading on the seventh day is also advised to exclude the irritant reaction (IR) and to notice some delayed development of allergic reaction. However, multiple visits are often difficult for the patient; therefore, this late reading is sometimes omitted. Here a case of plantar hyperkeratosis, due to allergic contact dermatitis, is reported with some insight into interpretation of the patch test. The patient showed delayed patch test reaction to formaldehyde and colophony, which has never been reported before.
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spelling pubmed-28008732010-01-04 LATE REACTION, PERSISTENT REACTION AND DOUBTFUL ALLERGIC REACTION: THE PROBLEMS OF INTERPRETATION Sarma, Nilendu Indian J Dermatol Case Report The standard method of patch test reading is to read the test site for any positive allergy at 48 hr and then again at 72/96 hr. A late reading on the seventh day is also advised to exclude the irritant reaction (IR) and to notice some delayed development of allergic reaction. However, multiple visits are often difficult for the patient; therefore, this late reading is sometimes omitted. Here a case of plantar hyperkeratosis, due to allergic contact dermatitis, is reported with some insight into interpretation of the patch test. The patient showed delayed patch test reaction to formaldehyde and colophony, which has never been reported before. Medknow Publications 2009 /pmc/articles/PMC2800873/ /pubmed/20049272 http://dx.doi.org/10.4103/0019-5154.48989 Text en © Indian Journal of Dermatology http://creativecommons.org/licenses/by/2.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Case Report
Sarma, Nilendu
LATE REACTION, PERSISTENT REACTION AND DOUBTFUL ALLERGIC REACTION: THE PROBLEMS OF INTERPRETATION
title LATE REACTION, PERSISTENT REACTION AND DOUBTFUL ALLERGIC REACTION: THE PROBLEMS OF INTERPRETATION
title_full LATE REACTION, PERSISTENT REACTION AND DOUBTFUL ALLERGIC REACTION: THE PROBLEMS OF INTERPRETATION
title_fullStr LATE REACTION, PERSISTENT REACTION AND DOUBTFUL ALLERGIC REACTION: THE PROBLEMS OF INTERPRETATION
title_full_unstemmed LATE REACTION, PERSISTENT REACTION AND DOUBTFUL ALLERGIC REACTION: THE PROBLEMS OF INTERPRETATION
title_short LATE REACTION, PERSISTENT REACTION AND DOUBTFUL ALLERGIC REACTION: THE PROBLEMS OF INTERPRETATION
title_sort late reaction, persistent reaction and doubtful allergic reaction: the problems of interpretation
topic Case Report
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2800873/
https://www.ncbi.nlm.nih.gov/pubmed/20049272
http://dx.doi.org/10.4103/0019-5154.48989
work_keys_str_mv AT sarmanilendu latereactionpersistentreactionanddoubtfulallergicreactiontheproblemsofinterpretation

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