{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,6]],"date-time":"2026-04-06T10:22:41Z","timestamp":1775470961927,"version":"3.50.1"},"reference-count":13,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2016,6,10]],"date-time":"2016-06-10T00:00:00Z","timestamp":1465516800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Aust J Dermatology"],"published-print":{"date-parts":[[2018,2]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Background<\/jats:title><jats:p>Many patients with dermatitis over photo\u2010exposed body areas are positive to many contact allergens and have a pre\u2010existing allergic contact dermatitis.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>This study included patients who presented to a tertiary centre in India with dermatitis on photo\u2010exposed body areas suspected of chronic actinic dermatitis. Their detailed histories were recorded and cutaneous and systemic examinations were performed. Patch testing was done in all the patients and photo\u2010patch testing was carried out in 86 patients.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Altogether 101 patients were included (69 males, 32 females). The most common presentation was lichenified hyperpigmented plaques on the photo\u2010exposed sites. Photosensitivity was recorded in 64 (63%) patients and summer exacerbation in 52 (52%). Exposure to the <jats:italic>Parthenium hysterophorus weed<\/jats:italic> was recorded in 70 (69%) patients, 27 (26.7%) had a history of hair dye application and 20 (20%) had a history of atopy. Photo\u2010patch test was positive in 11 (12.8%) patients and patch testing was positive in 71 (70%). <jats:italic>Parthenium hysterophorus<\/jats:italic> was the most common allergen implicated and was positive in three (4%) photo\u2010patch and 52 (52%) patch tests. Other positive photo\u2010patch test allergens were perfume mix, balsam of Peru, thiuram mix, <jats:italic>Compositae<\/jats:italic> mix and promethazine hydrochloride. Other common patch test allergens were parthenolide, colophony, fragrance mix and p\u2010phenylenediamine (<jats:styled-content style=\"fixed-case\">PPD<\/jats:styled-content>) base.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>In the Indian population parthenium and perfume mix are the most common photoallergens in patients with dermatitis over photo\u2010exposed areas, while parthenium, colophony, fragrance mix and <jats:styled-content style=\"fixed-case\">PPD<\/jats:styled-content> are the common positive allergens.<\/jats:p><\/jats:sec>","DOI":"10.1111\/ajd.12504","type":"journal-article","created":{"date-parts":[[2016,6,10]],"date-time":"2016-06-10T10:58:20Z","timestamp":1465556300000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":10,"title":["Photo\u2010patch and patch tests in patients with dermatitis over the photo\u2010exposed areas: A study of 101 cases from a tertiary care centre in India"],"prefix":"10.1111","volume":"59","author":[{"given":"Vinod Kumar","family":"Sharma","sequence":"first","affiliation":[{"name":"Dermatology and Venereology All India Institute of Medical Sciences New Delhi India"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Neetu","family":"Bhari","sequence":"additional","affiliation":[{"name":"Dermatology and Venereology All India Institute of Medical Sciences New Delhi India"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ashok Roopchand","family":"Wadhwani","sequence":"additional","affiliation":[{"name":"Dermatology and Venereology All India Institute of Medical Sciences New Delhi India"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Riti","family":"Bhatia","sequence":"additional","affiliation":[{"name":"Dermatology and Venereology All India Institute of Medical Sciences New Delhi India"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2016,6,10]]},"reference":[{"key":"e_1_2_6_2_1","doi-asserted-by":"publisher","DOI":"10.1001\/archderm.1990.01670270108018"},{"key":"e_1_2_6_3_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1600-0536.2007.00974.x"},{"key":"e_1_2_6_4_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1468-3083.2004.01053.x"},{"key":"e_1_2_6_5_1","first-page":"287","article-title":"Terminology of contact dermatitis","volume":"50","author":"Wilkinson DS","year":"1970","journal-title":"Acta Derm. 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