eMedicine Specialties > Emergency Medicine > Dermatology
Molluscum Contagiosum: Differential Diagnoses & Workup
Updated: Jul 2, 2008
- Overview
- Differential Diagnoses & Workup
- Treatment & Medication
- Follow-up
- Multimedia
Differential Diagnoses
Dermatitis, Atopic
Granuloma, Annulare and Pyogenic
Herpes Simplex
Herpes Zoster
Warts, Genital
Warts, Plantar
Other Problems to Be Considered
Atypical mycobacterial infections
Basal cell epithelioma/carcinoma
Cryptococcal infection
Disseminated mycosis (HIV)
Keratoacanthoma
Lichen planus
Nevi
Seborrheic dermatitis
Sporotrichosis
Syringoma
Xanthogranulomas
Furunculosis
Warts (verruca vulgaris)
Pyodermas (eg, folliculitis)
Vesicular skin disorders
Workup
Laboratory Studies
- The diagnosis of molluscum contagiosum usually is clinically based upon the appearance and locations of the lesions.
- Staining of thin smears with Giemsa, Gram, or Wright stain should reveal infected cells.
Other Tests
- Molluscum contagiosum viral (MCV) antigens can be detected by fluorescent antibody studies.
- Electron microscopy may identify individual viral particles.
Procedures
- Biopsy
- Lesions may be biopsied. With hematoxylin and eosin (H&E) staining, the clinician can demonstrate characteristic changes in the epidermis.
- Biopsy is particularly important in cases where the diagnosis is not clear.
More on Molluscum Contagiosum |
| Overview: Molluscum Contagiosum |
Differential Diagnoses & Workup: Molluscum Contagiosum |
| Treatment & Medication: Molluscum Contagiosum |
| Follow-up: Molluscum Contagiosum |
| Multimedia: Molluscum Contagiosum |
| References |
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References
Dohil M, Prendiville JS. Treatment of molluscum contagiosum with oral cimetidine: clinical experience in 13 patients. Pediatr Dermatol. 1996;13(4):310-2. [Medline].
Meadows KP, Tyring SK, Pavia AT. Resolution of recalcitrant molluscum contagiosum virus lesions in human immunodeficiency virus-infected patients treated with cidofovir. Arch Dermatol. 1997;133(8):987-90. [Medline].
Syed TA, Lundin S, Ahmad M. Topical 0.3% and 0.5% podophyllotoxin cream for self-treatment of molluscum contagiosum in males. A placebo-controlled double-blind study. Dermatology. 1994;189(1):65-8. [Medline].
Binder B, Weger W, Komericki P, Kopera D. Treatment of molluscum contagiosum with a pulsed dye laser: Pilot study with 19 children. J Dtsch Dermatol Ges. Feb 2008;6(2):121-5. [Medline].
Braue A, Ross G, Varigos G. Epidemiology and impact of childhood molluscum contagiosum: a case series and critical review of the literature. Pediatr Dermatol. Jul-Aug 2005;22(4):287-94. [Medline].
Brown J, Janniger CK, Schwartz RA. Childhood molluscum contagiosum. Int J Dermatol. Feb 2006;45(2):93-9. [Medline].
Dohil MA, Lin P, Lee J. The epidemiology of molluscum contagiosum in children. J Am Acad Dermatol. Jan 2006;54(1):47-54. [Medline].
Leslie KS, Dootson G, Sterling JC. Topical salicylic acid gel as a treatment for molluscum contagiosum in children. J Dermatolog Treat. 2005;16(5-6):336-40. [Medline].
Luisto M. Unusual and iatrogenic sources of tetanus. Ann Chir Gynaecol. 1993;82(1):25-9. [Medline].
Ordoukhanian E, Lane AT. Warts and molluscum contagiosum: Beware of treatments worse than the disease. Postgrad Med. 1997;101(2):223-35. [Medline].
Peter G, ed. American Academy of Pediatrics, Molluscum Contagiosum. In: Red Book: Report on the Committee on Infectious Diseases. 24th ed. 1997:364.
Scheinfeld NS. Molluscum contagiosum. Skinmed. Mar-Apr 2008;7(2):89-92. [Medline].
Differential Diagnoses & Workup: Molluscum Contagiosum