Lesions are usually self-limiting. A variety of mechanical and chemical treatments are available if treatment is required. Immunocompromised persons may develop persistent and large lesions, and there is an anecdotal association between head and neck molluscum and HIV infection. Consider HIV testing in such circumstances. TOP OF PAGE Aetiology and epidemiology Molluscum contagiosum is a common skin disease caused by a poxvirus.
Transmission is by direct skin contact.
Lesions may affect any part of the body. In children especially in warm climates these lesions are common on the shoulders and upper arms. Sexual contact may lead to the development of lesions around the genitals. Autoinoculation may occur, especially if lesions are scratched. TOP OF PAGE Diagnosis Diagnosis is based on characteristic clinical appearance.