Search Results for: ultraviolet%20radiation

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A Clinical Atlas of 101 Common Skin Diseases

Photoallergic Dermatitis and Phototoxic Dermatitis

An inflammatory process that results from either topical or systemic sensitization coupled with the effects of ultraviolet light. The lesions, all of which occur in photodistribution, are macules, papules, and blisters that resolve with crusts.

Therapeutic Strategies in Dermatology

Psoriasis: Principles of Psoriasis Management

…lesions. Photochemotherapy (PUVA) Topical or oral administration of 8-methoxypsoralen (psoralen) and UVA (PUVA = psoralen + ultraviolet A). Moderate-to-severe psoriasis requires 20-30 treatments to achieve clearing. Shield the patient’s eyes,…

Therapeutic Strategies in Dermatology

Cutaneous T-Cell Lymphoma/ Mycosis Fungoides: Overview

…s will progress, so regular evaluations with skin and lymph node evaluation are recommended. External antigens (medications, ultraviolet light, and contactants) can cause cutaneous eruptions with histologic features very similar to CTCL. Even T-ell…

Therapeutic Strategies in Dermatology

Photosensitivity Dermatoses: Overview

…may need to be followed. The goal is for patients to continue their regular activities (exercise, occupation) while avoiding ultraviolet radiation that triggers their skin conditions. Patients should be counseled that maximizing photoprotection may…

Therapeutic Strategies in Dermatology

Vitiligo: Key Points

…be difficult to predict. The mainstay of treatment includes topical corticosteroid and calcineurin therapies and narrow-band ultraviolet phototherapy; combined therapy may be most effective. Introduction Vitiligo is a common disorder of…

Therapeutic Strategies in Dermatology

Vitiligo: Treatment

…lesions or trigger new areas of depigmentation. Extensive disease, >5% body surface area) First-line therapy: Narrowband ultraviolet light, specifically UVB (NBUVB) therapy three times weekly can be used in patients with extensive lesions or…

A Clinical Atlas of 101 Common Skin Diseases

Phototoxic Dermatitis

…the combined effects of a toxic substance applied topically or administered systemically in combination with the effects of ultraviolet light, the result being a caricature of sunburn. The lesions consist of erythema and blisters, some of which may…

Therapeutic Strategies in Dermatology

Acne Keloidalis Nuchae: References

…s occurring predominately in skin of color, Am Fam Phys, 87(12):859-865. Loayza E et al (2015). Acne keloidalis nuchae in Latin American women, IJD, Epub ahead of print. Okoye GA et al (2014). Improving acne keloidalis nuchae with targeted…

Therapeutic Strategies in Dermatology

Pernio/Chilblains: Treatment

…steps Calcium channel blockers, particularly nifedipine, may alleviate lesions and prevent recurrence. There are reports of ultraviolet light phototherapy leading to decreased numbers of and severity of lesions, particularly when instituted…

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