Viral Skin Infection Flashcards
What virus causes chicken pox?
Varicella zoster
Shingles is caused by herpes zoster virus. True or false?
False
Shingles is caused by varicella zoster virus
Herpes zoster is just another name given to the condition, it isn’t the name of the causative organism
What virus causes cold sores?
Herpes simplex virus (HSV)
In which groups of patients can chicken pox be more serious?
Extremes of age
Immunocompromised
After recovery from infection with varicella zoster (chicken pox), the virus is eliminated from the body and is unable to cause symptoms again. True or false?
False
After recovery, the virus lays dormant in nerve roots and can reactivate causing shingles/herpes zoster
How does shingles/herpes zoster present?
Erythema/vesicles/crusting rash in a dermatomal distribution
Neuralgic pain
What is ophthalmic zoster and how does it present?
Herpes zoster affecting ophthalmic division of trigeminal nerve
Rash around eye with respect to midline
What is Ramsay-Hunt Syndrome and how does it present?
Herpes zoster affecting facial nerve
Facial drooping (facial nerve palsy)
Hearing loss, vertigo, tinnitus (CN VIII irritation)
How do you treat shingles/herpes zoster?
Acyclovir
What is a complication of herpes zoster/shingles?
Post herpetic neuralgia
What do herpes simplex virus-1 (HSV-1) and herpes simplex virus-2 (HSV-2) cause?
HSV-1: Oral and genital herpes
HSV-2: Genital herpes
What is herpetic gingivostomatitis?
Ulceration in and around mouth of pre-school children caused by HSV-1
What is herpes libialis?
Blistering at vermillion border (cold sore) caused by HSV-1
What is herpetic whitlow?
Blistering on finger caused by herpes simplex virus
What is eczema herpeticum?
Infection of eczematous skin with herpes simplex virus
What is a cutaneous complication of herpes simplex virus infection?
Erythema multiforme (hypersensitivity reaction forming numerous erythematous target lesions)
What causes molluscum contagiosum?
Poxvirus
What does molluscum contagiosum look like?
Small, fleshy, pearlescent nodules
How is molluscum contagiosum spread?
Very contagious, can be spread by touch and sexual transmission
Who is commonly affected by molluscum contagiosum?
Children
How do you treat molluscum contagiosum?
The nodules are self limiting but can be removed with liquid nitrogen
What HPV types are associated with genital warts?
HPV 6
HPV 11
What cutaneous sign does HPV cause commonly on children?
Warts
How are HPV warts managed?
They are uncomplicated and don’t require management
Can be removed with
- topical salicyclic acid
- imuniquimod (if resistant)
