Tuesday, November 29, 2016

A Child Presents With A Skin Lesion With No Other Associated Symptoms.

A 6-year-old child presents with the skin lesions shown below:

The lesions have been present over the last month, and the child has reported no symptoms associated with them. The most likely diagnosis is
A) Varicella
B) Herpes zoster
C) Rhus dermatitis
D) Molluscum contagiosum
E) Scabies

The answer is
D. (Molluscum contagiosum)

Discussion: Molluscum contagiosum is a common, superficial viral infection of the skin that typically occurs in infants and preschoolers. The incidence decreases after the age of 6 to 7 years. The condition can be spread via sexual contact in young adults.

Clinical features: The lesions are dome-shaped, waxy, or pearly-white papules with a central white
core and are 1 to 3 mm in diameter. Frequently, groups of lesions are found.
The lesions may resolve spontaneously.

Treatment involves removal with a sharp needle or curette, application of liquid nitrogen, antiwart preparations, electrodesiccation and curettage, or trichloroacetic peels for extensive areas. Typically, infants or young preschool-age children should not be treated aggressively.

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