Molluscum contagiosum and warts.

Molluscum contagiosum and warts are benign epidermal eruptions resulting from viral infections of the skin. Molluscum contagiosum eruptions are usually self-limited and without sequelae, although they can be more extensive in immunocompromised persons. Spontaneous disappearance of lesions is the norm, but treatment by local destruction (curettage, cryotherapy, or trichloroacetic acid) or immunologic modulation can shorten the disease course, possibly reducing autoinoculation and transmission. Warts result from a hyperkeratotic reaction to human papillomavirus infection; nongenital warts are classified as common, periungual, flat, filiform, or plantar, based on location and shape. Warts are treated by local destruction (acids, cryotherapy, electrodesiccation-curettage), chemotherapy, or immunotherapy. The choice of treatment varies with the age and wishes of the patient, the potential side effects of the treatment, and the location of the lesions.

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