A 2-year-old child develops multiple discrete, dome-shaped, umbilicated, flesh-colored papules (3–5 mm) on the trunk and axillae. The lesions are non-pruritic and have appeared over 4 weeks. The MOST likely etiological agent is:

• A Molluscum contagiosum virus (MCV) ✓
• B Human papillomavirus (HPV)
• C Herpes simplex virus type 1
• D Varicella-zoster virus

Explanation

Molluscum contagiosum is caused by Molluscum contagiosum virus (MCV), a poxvirus. Classic lesions are discrete, dome-shaped, flesh-colored or pearly papules with a central umbilication that contains a cheesy core. It is spread by direct contact and is common in young children. Most lesions resolve spontaneously within 6–18 months. HPV causes flat or verrucous warts without umbilication; herpes produces grouped vesicles on an erythematous base.

Reference: Ghai Essential Pediatrics, 10th ed.

High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP

Written and medically reviewed by the StethoPrep medical team.