Dome-shaped papules with a central umbilication are characteristic of which infection?

• A. Verruca vulgaris
• B. Molluscum contagiosum
• C. Herpes zoster
• D. Candidiasis

Answer: (B)

Molluscum contagiosum presents with firm, dome-shaped, flesh-colored or pearly papules that often have a tiny central dimple, or umbilication. This central depression is a classic clue and reflects the plug of keratin and viral material within the epidermis. These lesions are usually painless and can be multiple, which helps distinguish them from other infections: verruca vulgaris tends to be rough and warty without a central dimple; herpes zoster shows painful grouped vesicles in a dermatomal distribution rather than discrete umbilicated papules; candidiasis produces red, moist, macerated plaques often in skin folds rather than isolated dome-shaped papules.