Contact eczema in agricultural workers.

Dawson, T. A. J.; Scott, K.W.

doi:10.1136/bmj.3.5824.469-b

Cited by 14 publications

(3 citation statements)

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“…The antibiotic and growth‐promoting food additive, quindoxin, was introduced to Europe in the early 1970s for piglets to reduce bacterial enteritis. Within 2 years, reports of PACD in pig feed handlers began to appear (12, 13). It was subsequently withdrawn from the market in 1973 when it was replaced by a derivative, olaquindox (14) but reports of PACD to this agent also began to emerge by the 1980s (15).…”

Section: Historical Aspectsmentioning

confidence: 99%

Photoallergic contact dermatitis

Kerr¹,

Ferguson²

2010

Photodermatology, Photoimmunology &Amp; Photomedicine

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SummaryBackground: Photoallergic contact dermatitis (PACD) presents in patients after certain exogenous agents come into contact with the skin in the presence of ultraviolet and/or visible light. The best method currently available for investigating PACD is photopatch testing. However, photopatch testing as an investigation is under-used by clinicians, and therefore PACD may go undetected in many patients. Purpose: To highlight the importance of PACD and photopatch testing when investigating patients with a photo-exposed site dermatosis. Method: A comprehensive review of the available literature relating to PACD and photopatch testing. Results: Experimental evidence suggests that PACD is a delayed type hypersensitivity reaction. Various agents have been historically shown to cause PACD, but currently the most common photosensitizers are sunscreens and topical non-steroidal anti-inflammatory drugs. Photopatch testing has in the past been subject to differing methodologies; however, a European consensus methodology now exists and should allow a greater comparison of results across centres. As chemical, pharmaceutical, and cosmetic industries produce new agents, photopatch testing of such agents in humans before release in the marketplace may prevent widespread contact with potent photosensitizers. It will also be important for ongoing multi-centre studies of existing agents to be conducted in order to keep the photopatch test batteries used by clinicians investigating PACD up to date.

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Section: Historical Aspectsmentioning

confidence: 99%

Photoallergic contact dermatitis

Kerr¹,

Ferguson²

2010

Photodermatology, Photoimmunology &Amp; Photomedicine

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“…Attempt to carefully slice off the entire burrow (Fig 1) instead of re-peatedly scraping, which may destroy the structure and relationships of feces, eggs, and mites (Fig 2). 3. Place the oil on the slide, not the patient.…”

Section: Azathioprine and Pemphigus Vulgarismentioning

confidence: 99%

Azathioprine and Pemphigus Vulgaris

Burton¹

1973

Arch Dermatol

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“…The general appearance in many respects resembled cement dermatitis. Characteristic lesions on the hands are shown in Photo-contact dermatitis from quindoxin 545 PATCH-TESTS As the distribution of the lesions and the preliminary study (Dawson & Scott, 1972) indicated that photosensitization was at least in part involved, photo-patch-tests as well as closed patch-tests were included in the present investigation.…”

mentioning

confidence: 99%