Dermatology Flashcards

1
Q

What is another name for eczema?

A

Dermatitis

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2
Q

What is eczema?

A

Itchy dry inflammatory skin disease

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3
Q

What are different types of eczema?

A
Atopic
Seborrhoeic
Discoid
Pomphylx
Varicose
Contact allergic dermatitis
Contact irritant dermatitis
Photoaggravated
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4
Q

Where is affected by seborrhoeic eczema?

A

Face/scalp

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5
Q

What is pomphylx dermatitis?

A

Vesicles affecting palms/sores

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6
Q

What is varicose eczema?

A

Eczema caused by oedema/venous insufficiency

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7
Q

What is atopic eczema?

A

Most common - allergic response

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8
Q

What 3 conditions are part of atopic march?

A

Eczema
Asthma
Hayfever

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9
Q

What is atopic march?

A

Progression of atopic conditions through early years of life

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10
Q

How is atopic eczema distributed in infancy?

A

Starts on face/neck (cheeks common), can spread more generally

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11
Q

How does atopic eczema present in older children?

A

Flexural pattern - antecubital fossa, popliteal fossa, etc

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12
Q

What are complications of atopic eczema?

A

Loss of skin barrier function:
Loss of water
Irritants may penetrate - soap, detergent, solvents, dirt
Allergens may penetrate

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13
Q

What are flares of childhood eczema associated with?

A
Infection/viral illness
Environment - central heating, cold air
Pets if allergic
Teething
Stress
Sometimes no cause for flare found
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14
Q

How is seborrhoeic dermatitis managed?

A

Emollients
Antifungal creams
Antifungal shampoos
Mild topical steroids

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15
Q

What is used to test for allergies and eczema?

A

Blood test for specific IgE antibodies
Skin prick testing
Beware of false positive tests

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16
Q

What are common sources of allergy?

A

Milk
Soy
Peanuts
Eggs

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17
Q

How is eczema treated?

A
Emollients
Topical steroids
UVB light
Immunosuppressive medication
Calcineurin inhibitors
18
Q

How are steroids used for eczema?

A

Once daily for 1-2 weeks
If improvement then use alternate days for a few more days
If still persists use twice weekly in areas
If flare up starts go back to daily application

19
Q

How much steroid should be given?

A

1 fingertip unit

20
Q

What is impetigo?

A

Acute superficial bacterial skin infection

Pustules and honey-coloured crusted erosions

21
Q

What typically causes impetigo?

A

Staph aureus

22
Q

How is impetigo treated?

A

Topical antibacterial - fucidin

Oral antibiotic - flucloxacillin

23
Q

What is molloscum contagiosum?

A

Benign self limiting infection
2 week to 6 month incubation
Pearly papules, umbilicated centre
Transmission to close direct contacts

24
Q

What organism causes molloscum contagiosum?

A

Molluscipox virus

25
Q

How can molloscum contagiosum be treated?

A

Conservative management

5% potassium hydroxide

26
Q

What causes viral warts?

A

HPV

27
Q

What is a wart in the sole of the foot called?

A

Verruca

28
Q

How are viral warts treated?

A

Topical salicylic acid

29
Q

What conditions cause viral exanthems?

A
Chicken pox
Measles
Rubella
Herpes virus 6
Erythema infectiosum
30
Q

What is orofacial granulomatosus?

A

Lip swelling and fissuring

Oral mucosal lesions - ulcers and tags, cobblestone appearance

31
Q

What conditions are associated with orofacial granulomatosus?

A

Crohn’s disease

Sarcoidosis

32
Q

What is erythema nodosum?

A

Painful erythematous subcutaneous nodules - usually over shins

33
Q

What are causes of erythema nodosum?

A
Infections - streptococcus
IBD
Sarcoidosis
Drugs - OCP, sulphonamides
Mycobacterial infections
Idiopathic
34
Q

What disease is dermatitis herpetiformis associated with?

A

Coeliac disease

35
Q

What lesions are in dermatitis herpetiformis?

A

Itchy blisters in clusters - symmetrical

36
Q

Where are common areas affected by dermatitis herpetiformis?

A
Scalp
Shoulders
Buttocks
Elbows
Knees
37
Q

How is dermatitis herpetiformis treated?

A

Emollients
Gluten free diet
Topical steroids
Dapsone

38
Q

What is another name for urticaria?

A

Hives

39
Q

What can cause urticaria?

A
Viral infection
Bacterial infection
Food or drug allergy
NSAIDs/opiates
Vaccinations
40
Q

How is urticaria treated?

A

Avoid triggers

Antihistamines - ranitidine