DERMATOLOGY Flashcards

1
Q

What bacteria causes acne?

A

Propionibacterium acnes in pilosebaceous duct

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2
Q

What is the treatment for mild acne vulgaris?

A

Topical retinoid- Tretinoin

Azelaic acid

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3
Q

What is the treatment for moderate acne?

A

Same as mild but add topical antibiotic

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4
Q

What is the treatment for severe acne?

A

Laser treatment

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5
Q

Where is eczema usually found?

A

On the face and surface of limbs

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6
Q

What is the treatment of eczema?

A

Keep nails short , scratch mittens
emollients
If severe- corticosteroids

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7
Q

What is the most common form of psoriasis?

A

Chronic plaque psoriasis

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8
Q

Nail signs of psoriasis?

A

Pitting, discolouration and onycholysis

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9
Q

Psoriasis treatment?

A

Emollient, topical corticosteroid and topical vit D
Servere- Phototherapy
methorexate
influximab

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10
Q

Where do arterial ulcers occur?

A

Toes, heel and ankle

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11
Q

Where do venous ulcers occur?

A

Medial gaiter region

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12
Q

What size are venous ulcers?

A

Large

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13
Q

What is ABPI?

A

Ankle brachial pressure index

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14
Q

How do we treat arterial ulcers?

A

Vascular recontruction

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15
Q

How do we treat venous ulcers?

A

Compression bandaging

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16
Q

What commonly causes cellulitis and erysipelas?

A

Strep pyogenes and staph aurues

17
Q

How do we treat cellulitis?

A

Oral antibiotics- Flucloxacillin or clarithromycin

18
Q

What causes necrotizing fasciitis>

A

Group A haemolytic strep

19
Q

What is the most common skin cancer?

A

Basal cell carcinoma

20
Q

What is basal cell carcinoma?

A

A slow growing cancer of the epidermal keratinocytes

21
Q

What is a complication of basal cell carcinomas?

A

Local tissue destruction

22
Q

What is squamous cell carcinoma?

A

A squamous cell tumour that invades the dermis

Slow growing and appears in sun damaged areas like the face, hand and trunk

23
Q

How do squamous cell present?

A

Scaly and crusty
ill defined edges
may ulcerate

24
Q

What are the signs of malignant melanoma?

A
Asymetrical shape
Border irregular
Colour irregular
Diameter> 5cm
Evolution/change of lesion
25
Q

What type of hypersensitivity is contact dermatitis?

A

Type 4