Classic viral exanthems, such as measles, rubella, and Fifth disease, have great historical significance and, despite vaccine successes, still occur both in the United States and across the world. Because they are either less commonly seen (e.g., measles) or recognized by pediatricians (e.g., Fifth disease), viral exanthems that present to dermatology clinics are often "atypical" and may cause diagnostic confusion. This article will first review a general approach to the patient with a possible viral exanthem, discuss several current issues germane to "classic" exanthems, and delve into greater detail regarding atypical presentations.
BACKGROUND: The incidence of skin cancer has increased in the United States, concomitant with increased UV radiation (UVR) exposure among young adults. We examined whether tanning facilities in Missouri, a state without indoor-tanning regulations, acted in accordance with the Food and Drug Administration’s recommendations and consistently imparted information to potential clients about the known risks of UVR. METHODS: We conducted a statewide telephone survey of randomly selected tanning facilities in Missouri. Each tanning facility was surveyed twice, in the morning (7 am–3 pm) and evening (3–10 pm), on different days, to determine intrasalon consistency of information provided to potential clients at different times. RESULTS: On average, 65% of 243 tanning-facility operators would allow children as young as 10 or 12 years old to use indoor-tanning devices, 80% claimed that indoor tanning would prevent future sunburns, and 43% claimed that there were no risks associated with indoor tanning. Intrasalon inconsistencies involved allowable age of use, and UVR exposure type and duration. Morning tanning-facility employees were more likely to allow consumers to start with maximum exposure times and UV-A–emitting devices (P < .001), whereas evening employees were more likely to allow 10- or 12-year-old children to use indoor-tanning devices (P = .008). CONCLUSIONS: Despite increasing evidence that UVR exposure in indoor-tanning devices is associated with skin cancer, ocular damage, and premature photoaging, tanning facilities in Missouri often misinformed consumers regarding these risks and lack of health benefits and inconsistently provided information about the Food and Drug Administration’s guidelines for tanning devices.
Telaprevir and boceprevir are novel protease inhibitors recently approved for treatment of chronic hepatitis C virus infection, and have gained widespread use. Skin rash has been reported frequently in patients treated with telaprevir, but less commonly with boceprevir. Despite a high incidence in clinical trials, the telaprevir-related eruption has not been fully described in the literature. We describe six patients treated with telaprevir and three treated with boceprevir who developed skin rash related to the antiviral medication. Four patients treated with telaprevir developed laboratory abnormalities and/or systemic symptoms and five required discontinuation of their antiviral medication because of these adverse effects, including two patients who fit criteria for drug reaction with eosinophilia and systemic symptoms (DRESS). Patients with boceprevir-related rash had a milder course and none required discontinuation of the medication. This report confirms that cutaneous adverse effects from telaprevir and boceprevir are common. Patients treated with telaprevir may have a more severe course and more frequently require discontinuation of their antiviral therapy due to extensive rash or laboratory abnormalities. Dermatologists must be aware of these cutaneous adverse effects, as early intervention with topical corticosteroids and antihistamines may minimize the severity of the eruption and allow patients to complete antiviral therapy.
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