Pediatric emergency medicine trisk 1823 1823

Allergic contact dermatitis
Irritant contact dermatitis
Papular urticaria
Erythema multiforme
Guttate psoriasis
Pityriasis lichenoides
Lichen nitidus

EVALUATION AND DECISION
In approaching a child with an exanthem, a careful history and full examination
of all cutaneous surfaces will often be all that is required to make a diagnosis. The
most important historical features include the duration of the rash (acute or
chronic), initial distribution, extent of spread (generalized or localized), ill
contacts (including sexual partners), and any associated systemic symptoms,
including fever. The physical examination should include a careful systematic
inspection of all mucocutaneous surfaces, with special attention paid to
involvement of the oropharynx, palms and soles, extensor or flexor surfaces,
scalp, and trunk.
TABLE 88.2
POTENTIALLY LIFE-THREATENING ILLNESSES ASSOCIATED
WITH DIFFUSE MORBILLIFORM ERUPTION
Rocky Mountain spotted fever
Kawasaki disease
Erythema multiforme
Dengue fever
Rubeola
Ehrlichiosis
Drug reaction with eosinophilia and systemic symptoms (DRESS)