|Color Atlas & Synopsis of Pediatric Dermatology, 2e|
Section 4. Disorders of Epidermal Proliferation
Topics Discussed: dermatology; guttate psoriasis; psoriasis; psoriasis, erythrodermic; pustulosis of palms and soles.
Sections: Pityriasis Amiantacea, Ichthyosiform Dermatoses and Erythrokeratodermas.
Excerpt:"Psoriasis is a hereditary disorder of skin characterized by chronic
scaling papules and plaques in a characteristic distribution, largely
at sites of repeated minor trauma. The HLA types most frequently
associated with psoriasis are HLA-B13, -B17, -Bw16, -B37, -Cw6,
and DR7.It can be difficult to distinguish between atopic dermatitis
and psoriasis in infancy. If family history and cutaneous findings
are not helpful, one hint is atopic dermatitis usually spares the
diaper area and psoriasis favors that location.Type Well-delineated, erythematous,
thickened plaques with a characteristic silvery-white scale (Fig. 4-1A).
Removal of scale results in the appearance of miniscule blood droplets
(Auspitz sign).Type Papules 2 mm to 1 cm.Type Pustules that evolve into
crusts and scaling.Erythroderma is one of the true dermatologic emergencies. An
etiology should be sought quickly and supportive care initiated
immediately.Type of Lesions Confluent diffuse
erythema covered by laminated scales. Skin becomes dull, scarlet,
swollen, with areas of oozing (Fig. 4-4). Desquamation usually occurs
after a few days. The palms and soles are covered by thick scales
and have deep fissures. Secondary infections by bacteria can develop.1. Emollients such as petrolatum, mineral oil, Vaseline,
or moisturizers (CeraVe, Eucerin, Moisturel, and Aquaphor creams)
The content above is only an
excerpt. For full access, log into an existing user account below, purchase an annual subscription, or
purchase a short-term subscription to the complete website.
offers pediatrics students,
educators, and practioners access to leading McGraw-Hill texts, interactive imaging
content, exclusive multimedia, and flexible curricular tools.
Timed access to all of AccessPediatrics
24 hours for $29.95
48 hours for $49.95