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Dermatology AM > Skin infections and infestations > Flashcards

Skin infections and infestations Flashcards

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Dermatology Board Prep flashcards
1
Q

What is the process of HSV?

A

Primary exposure leads to latent infection and a cycling response of clinical episodes an latent infection

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2
Q

What are the 2 types of HSV?

A 
HSV-1= oral herpes
HSV-2= gental herpes
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3
Q

How is HSV transmitted?

A

Usually by direct contact

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4
Q

What are the signs and symptoms of HSV?

A

Blistering sores
Itching
Fever, lymphadenopathy, lack of appetite, fatigue, headaces
HSV-2= painful urination

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5
Q

What is the treatment of HSV?

A

Aciclovir

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6
Q

What is the process of HZV?

A

Primary exposure leads to chicken pox then latent infection, which can be reactivated causing shingles then returning to latent infection

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7
Q

What are the signs and symptoms of shingles?

A

Red skin rash that causes pain and burning, typically on one side of the body in small patches
Vesicles or bulla that break easily

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8
Q

What is the treatment of HZV?

A

Aciclovir in higher doses than in HSV

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9
Q

What is the initial presentation of ORF?

A

Red, itchy, painful plaque, usually fingers, hands, forearms or fae

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10
Q

What are the signs and symptoms of ORF?

A

Bulla or pustule/abscess that weeps fluid will develop then crust over
Pyrexia, fatigue, lymphadenopathy

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11
Q

What is the treatment of ORF?

A

None- self limiting

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12
Q

When is the peak incidence of molluscum contagiosum?

A

~10 years

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13
Q

What causes molluscum contagiosum?

A

Viral

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14
Q

What are the signs and symptoms of molluscum contagiosum?

A

Small red raised papule with characteristic small dimple in the middle, most often in armpit, behind knees or in groin
Itchy

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15
Q

Wat is the treatment of molluscum contagiosum?

A

Cryotherapy

Expression and antiseptic

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16
Q

When is treatment recommended in molluscum contagiosum?

A

In older children and adults if spots unsightly or impact quality of life

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17
Q

What causes scabies?

A

Ectoparasites

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18
Q

What are the signs and symptoms of scabies?

A

Intense itching, esp at night
Pimple like rash, papule and vesicles
Burrows- if there is 1 burrow this is enough for diagnosis

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19
Q

What is the treatment of scabies?

A

Cream- lyclear, all over body

Treat close contact also

20
Q

What are the types of warts?

A 
Plantar
Genital
Plane
Filliform
Mosaic
21
Q

What causes warts?

A

HPV

22
Q

What is the appearance of plantar warts?

A

Flesh coloured or light brown

Flecked with small clotted blood vessels that may appear as black dots

23
Q

What is the appearance of genital warts?

A

Flesh coloured, pink or red growth in or around sex organs

24
Q

What is the treatment of warts?

A 
Cryotherapy
Salicylic acid
Covering with duct tape
Surgical removal
Laser surgery
25
Q

What can fungal infections cause?

A 
Tinea pedis
Tinea cruris
Tinea corporis
Tinea barbae
Kerion
26
Q

What in tinea pedis?

A

Athlete’s foot

27
Q

What is tinea cruris?

A

Fungal infection of crotch

Common in people with athletes foot

28
Q

What is tinea corporis?

A

Fingal infection of body- ringworm

29
Q

What is tinea barbae?

A

Fungal infection in hair follicles

30
Q

What is the treatment of tinea barbae?

A

Systemic antifungals

31
Q

What is a kerion?

A

Abscess caused by fungal infection, usually in scalp

32
Q

What is the treatment of a kerion?

A

Topica; and systemic treatment

33
Q

What is impetigo?

A

Highly contagious bacterial skin infection

34
Q

What causes impetigo?

A

Usually staph aureus

35
Q

What is the appearance of impetigo?

A

Golden coloured blisters/sores

36
Q

What s a furuncle?

A

Boil

37
Q

What causes a furuncle?

A

Staph aureus infection of hair follicle

38
Q

What is the appearance of a furuncle>

A

Painful swollen area with accumulation of pus and dead tissue

39
Q

What is a carbuncle?

A

Collection of builds connected under the skin

Infection of hair follicles with collection of pus under skin

40
Q

What is erysipelas?

A

Infection of upper dermis

41
Q

What is the appearance of erysipelas?

A

Sharply demarcated raised edge of red, warm rash

Enlarges rapidly

42
Q

What causes erysipelas?

A

Streptococcus

43
Q

What is cellulitis?

A

Infection deep into dermis, will cause systemic illness

44
Q

What causes cellulitis?

A

Staph aureus and streptococcus

45
Q

What is the appearance of cellulitis?

A

Diffuse border, red appearance

46
Q

What is ecthyma?

A

Crusted scored beneath which ulcers form down into dermis

47
Q

What is the main cause of ecthyma?

A

Staph aureus

Dermatology AM (9 decks)

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