Molluscum contagiosum - External and Internal Eye
In adults, molluscum contagiosum is more commonly distributed on the mons pubis, the genitalia, perineum, inner thighs, and lower abdomen. The distribution in children is trunk and extremities.
Many cases are asymptomatic, but there can be surrounding irritation in association with pruritus. Molluscum may occur in tattoos.
Papules may persist for several months and up to 2 years before disappearing. In the immunocompetent host, the disease tends to be self-limited.
Patients with AIDS or who are otherwise immunosuppressed are at particular risk of molluscum infection, with prevalence rates of 5%-18% having been reported. Other risk factors are atopic dermatitis and sarcoidosis.
B08.1 – Molluscum contagiosum
40070004 – Molluscum contagiosum
- Herpes simplex lesions can resemble molluscum with a central umbilication, but lesions are fluid-filled rather than solid as in molluscum contagiosum.
- Sebaceous hyperplasia primarily occurs on the face and has a whiter to slight yellow, lobular appearance.
- Warts tend to have a verrucous or jagged surface, whereas molluscum contagiosum lesions are smooth.
- Milia tend to be whiter in color and more concentrated on the face.
- Lobular capillary hemangioma (pyogenic granuloma) is obviously vascular with frequent ulceration.
- Lichen planus lesions are purple, pruritic planar papules that can also spread in a linear pattern.
- Basal cell carcinoma tends to be solitary.
- Keratoacanthomas have a central keratin core and grow rapidly.
- Spitz nevus
- Large cell acanthoma
- Pigmented spindle cell and/or epithelioid cell nevus