Chronic actinic dermatitis

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Date: Mar. 12, 2018
From: CMAJ: Canadian Medical Association Journal(Vol. 190, Issue 10)
Publisher: CMA Joule Inc.
Document Type: Clinical report
Length: 612 words
Lexile Measure: 1700L

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A 60-year-old man presented to our dermatology clinic with a photodistributed, eczematous eruption of the face, neck and arms (Figure 1). He had red hair and blue eyes, and worked as a mechanic. He had a history of eczema, asthma and hayfever with allergies to grass, tree, ragweed and flower pollen. He had been prescribed topical desoximetasone, and oral diphenhydramine, cetirizine and prednisone, with little effect. His presentation, age, gender and history were suggestive of chronic actinic dermatitis.

The patient underwent patch testing, and he was positive to tixocortol pivalate (2+), relevant to his cortisone cream; decyl glucoside (3+), a preservative in his sunscreen; and bisphenol A epoxy resin (3+), which was present in his workplace. Phototesting showed a minimal erythema dose of less than 5 J/[cm.sup.2] to ultraviolet A and less than 0.05 J/[cm.sup.2] to broadband ultraviolet B. In the clinic where testing was completed, these scores were considered low for his...

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Gale Document Number: GALE|A530637573