Images in Clinical Practice Indian Pediatrics 2005; 42:488-489 |
||
Giant Molluscum Contagiosum |
||
Molluscum contagiosum is a common skin infection in children caused by DNA poxvirus. It spreads by both sexual and nonsexual route like direct contact with infected skin or fomites. After an average incubation period of two to three months, flesh colored, dome shaped, 3-5 mm sized papules with central umbilication appear on the face, trunk and exposed body parts. In patients with acquired immune disease syndrome, such lesions can occur on the eyelid, conjunctiva and can be large in size (10-15 mm) and number, resistant to therapy and more prone to secondary infection. Thus all patients with the aforesaid presentation should be screened for HIV. Increased number of lesions may also be seen in patients with atopic dermatitis, malignancies and, those on steroids and other immunosuppresive drugs. Differential diagnoses include folliculitis, warts, basal cell epi-thelioma, keratoacanthoma, cryptococcosis and nevi. Laboratory confirmation is by demonstrating the enlarged epithelial cell with intracytoplasmic molluscum bodies on cytologic or histologic studies. Newer diagnostic options include electron microscopy, in-situ DNA hybridization and fluorescent antibody test. Treatment modalities include cryotherapy with liquid nitrogen, extirpation followed by cauterization of the base with electro-dessication, or chemical agents such as silver nitrate, phenol and trichloroacetic acid. Resistant cases in immunocompromised patients may be treated with topical antiviral agent cidofovir(5%) or intralesional interferon alpha. Infected patients should avoid sharing of towels and common bathing areas like swimming pools. Deepika Pandhi,
|