Molluscum Contagiosum

Question 1

Define molluscum contagiosum.

Answer 1

This condition is caused by the molluscum contagiosum virus, a ubiquitous poxvirus that escapes immune destruction for months to years.

Question 2

Explain the aetiology/risk factors of molluscum contagiosum.

Answer 2

Close contact with an infected individual
Sexual contact with an infected individual
HIV infection
Tropical climate
Swimming

Question 3

Summarise the epidemiology of molluscum contagiosum.

Answer 3

The condition most commonly affects children, with an overall prevalence in children estimated to be between 5% and 12%. Adults may also be infected via sexual transmission.

Question 4

Recognise the presenting symptoms of molluscum contagiosum. Recognise the signs of molluscum contagiosum on physical examination.

Answer 4

Pearly papule with a central dell
Surrounding erythema
Facial or groin distribution of lesions
Pruritus
Atopic dermatitis

Question 5

Identify appropriate investigations for molluscum contagiosum and interpret the results.

Answer 5

Curettage biopsy
Tzanck stain
Haematoxylin and eosin staining
HIV test

All of these are not that common since molluscum contagiosum is mainly diagnosed through history and examination.

Question 6

What is the management for molluscum contagiosum?

Answer 6

Topical treatment: potassium hydroxide, salicylic acid or benzoyl peroxide

Question 7

What are complications associated with molluscum contagiosum?

Answer 7

Atopic dermatitis

Dyspigmentation

Pitted scarring

Interface dermatitis (ID) reaction

Erythema multiforme-like dermatitis

Question 8

What is the prognosis for molluscum contagiosum?

Answer 8

The prognosis of patients with molluscum contagiosum infections who are otherwise healthy is extremely good.