Solar Dermatitis

Lamb, John H.

doi:10.1001/archderm.1950.01530140005001

Cited by 30 publications

(5 citation statements)

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“…Plaque-like lesions, one of the most consistently agreed upon clinical morphologies, were seen in 15 biopsies and microscopic sections from these biopsies showed parakeratosis (4/15 cases), atrophy (12/15 cases), follicular plugging (number of cases not specified), either intercellular or intracellular edema (10/15 cases), vacuolar alteration (5/15 cases), papillary dermal edema (14/15 cases), dilated blood vessels and a dense perivascular infiltrate. 26 Wright et al described histopathology from 14 patients 24 who probably had papular PMLE 4 and reported there was parakeratosis, hyperkeratosis, focal acanthosis, follicular plugging, slight vacuolar alteration (occasionally), subepidermal edema, vascular dilatation and a perivascular infiltrate of lymphocytes. 24 of PMLE.…”

Section: Discussionmentioning

confidence: 99%

Marked papillary dermal edema – an unreliable discriminator between polymorphous light eruption and lupus erythematosus or dermatomyositis

et al. 2010

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Section: Discussionmentioning

confidence: 99%

Marked papillary dermal edema – an unreliable discriminator between polymorphous light eruption and lupus erythematosus or dermatomyositis

et al. 2010

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“…Neben erwachsenen Patienten sind insbesondere Säuglinge und Kinder mit Hauttyp I und II betroffen (⊡ Tabelle 1). Die akute Schädigung der Epidermis wird im Wesentlichen durch eine über-mäßige Exposition gegenüber Strahlung aus dem UV-B-Bereich hervorgerufen [15,19,25]. Im Allgemeinen manifestiert sich die DS ca.…”

Section: Dermatitis Solarisunclassified

“…Die akute Schädigung der Epidermis wird im Wesentlichen durch eine übermäßige Exposition gegenüber Strahlung aus dem UV-B-Bereich hervorgerufen [15,19,25].Die UV-Strahlung schä-digt die DNS der Epidermiszellen und führt zur Freisetzung verschiedener proinflammatorischer Zytokine (z. B. Histamin und Prostaglandine), die wiederum die Entzündung,die DS,in der betroffenen Epidermis auslösen.…”

Section: Dermatitis Solarisunclassified

Lichtdermatosen im Kindesalter

Neumann

Lehmann²

2003

Hautarzt

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Actinic dermatitis and phototoxic and idiopathic photodermatoses occur relatively often during childhood. Photodermatoses stemming from enzyme defects and genetic disorders are much less common, while photoallergic and chronic actinic dermatitis have not been dealt with to date. A specific sensitivity of a child's skin to light is often the first manifest clinical symptom of a photodermatosis, the key is to ensure early diagnosis. However, it is often difficult to reach a diagnosis, as the lesions are barely perceptible or have even healed by the time the patient is examined. This is why photoprovocation tests are so important in diagnosing photodermatoses, particularly during childhood. In addition to early diagnosis of these illnesses and offering the appropriate treatment, it is also crucial that the parents be well informed and aware of what symptoms to look for so that they can protect their children from overexposure to UV light and thereby avoid later actinic injuries that can become as serious as malignancies.

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“…Yet the time course of TJV erythema and solar dermatitis in different latitudes and seasons appears to be dependent primarily on UV energy and not on the spectral differences encountered in sunlight (7). Observations by different workers (8)(9)(10) have established solar spectra.…”

Section: Solar Spectral Distributionmentioning

confidence: 99%

Specification and Design of Solar Ultraviolet Simulators**From the Department of Medical Physics, Temple University Medical School, Philadelphia, Pennsylvania 19140.

Berger¹

1969

Journal of Investigative Dermatology

115

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Vol. 53,No. 3 Peiated in U.S.A.Ultraviolet light (UV) causes most light induced skin reactions. Since the strongest source of UV in the normal environment is sunlight, an artificial source intended to elicit various normal and pathologic photoresponses should have a spectrum like that of the UV from the sun. It is the purpose of this paper to present the considerations required for the design of an ultraviolet solar simulator and to compare the measured performance of a completed instrument with design goals.Several types of light sources have been used in skin studies (1). Cold quartz mercury lamps have been of the most limited utility due to the preponderance of energy at 254 nm, a wavelength not naturally found (Fig. 1). Hot quartz mercury lamps and Kromayer lamps have a much higher proportion of energy at the 297, 303, 313, and 365 nm mercury spectral lines and have been used widely (Fig. 2). The ab-senee of a significant amount of energy between 313 and 365 nm limits the applicability of this light in reproducing photodcrmatitis (2-4). Carbon arc lamps employing appropriate rod material emit significant amounts of UV over the entire solar range (Fig. 3). In spite of superior spectral characteristics their use has been limited because of gaseous waste products which require adequate venting, and the maintenance problems resulting from consumable electrodes. The Westinghouse FS Sunlamp, a fluorescent light with a phosphor that peaks at 313 nm, readily causes sunburn but has negligible energy above 340 nm. The "black light" fluorescent lamp has a phosphor whose output peaks at 350 nm but falls off rapidly below this (Fig. 4). Its low intensity prevents its use in eliciting light induced dermatoscs. Xenon short arc lamps have been used since their availability in the early 1950's (5).They have a UV continuum like the sun, output is uniform over long periods, and there are not the maintenance problems of carbon arcs (Fig. 5). Xenon arcs have more of a heat problem than carbon arcs, for strong spectral lines exist in the near infrared.For completeness, the Vortex Stabilized Radiation Source and the Fluid Transpiration Arc should be mentioned. Each has abundant UV energy but the cost of these sources and their ancillary equipment is excessive (6). 192A light source which simulates the ultraviolet part of the solar spectrum, but at a much higher intensity, has been developed.t The source consists of a 150 watt xenon lamp, collecting optics, spectral shaping components, and a refocussing lens.The output spectrum has 70% of its enargy at wavelengths below 400 nm and resembles the spectrum of daylight ultraviolet for a 70° sun elevation. The intensity over a 1 cm diameter uniform spot is about 10 times that of daylight ultraviolet. At other focal positions, stronger intensities over smaller uniform areas and weaker intensities over larger uniform areas are found, all with the same spectrum. For uniform areas with less than 1 cm diameter the intensity can exceed the heat erythema threshold for multiple doses.Operation ...

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Solar Dermatitis

Cited by 30 publications

References 0 publications

Marked papillary dermal edema – an unreliable discriminator between polymorphous light eruption and lupus erythematosus or dermatomyositis

Marked papillary dermal edema – an unreliable discriminator between polymorphous light eruption and lupus erythematosus or dermatomyositis

Lichtdermatosen im Kindesalter

Specification and Design of Solar Ultraviolet Simulators**From the Department of Medical Physics, Temple University Medical School, Philadelphia, Pennsylvania 19140.

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