Are molluscum contagiosum a type of wart?


A, Multiple papules of molluscum contagiosum demonstrating a characteristic central keratotic core. B, Inflammatory molluscum contagiosum in a young child demonstrating both small, waxy, umbilicated papules and an inflammatory lesion simulating a furuncle. (Panel A courtesy of James E. Fitzpatrick MD; panel B courtesy of the Fitzsimons Army Medical Center teaching files.)
Fig. 26.4 A, Multiple papules of molluscum contagiosum demonstrating a characteristic central keratotic core. B, Inflammatory molluscum contagiosum in a young child demonstrating both small, waxy, umbilicated papules and an inflammatory lesion simulating a furuncle. (Panel A courtesy of James E. Fitzpatrick MD; panel B courtesy of the Fitzsimons Army Medical Center teaching files.)
No. Molluscum contagiosum is a viral infection of the skin produced by a poxvirus that is more closely related to the virus that produces smallpox. Like warts, they are more common in children and immunocompromised individuals, and can be sexually acquired. They may occur anywhere on the skin surface and present as firm, skin-colored umbilicated papules with a central core of keratin (Fig. 26-4A). Some lesions may demonstrate an intense host response (Fig. 26-4B). Many of the same treatments effective in treating warts are effective in treating molluscum contagiosum.

Scheinfeld N: Treatment of molluscum contagiosum: a brief review and discussion of a case successfully treated with adapelene, Dermatol Online J 13:15, 2007.