Introduction to Dermatology Flashcards

1
Q

What are some examples of adnexal structures?

A

Hair
Nails
Glands
Sensory structures

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2
Q

What are the 5 layers of the skin?

A
Stratum basale 
Stratum spinosum
Stratum granulosum 
Stratum lucidum 
Stratum corneum
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3
Q

What are the functions of the skin?

A

Thermoregulation (insulation, heat transfer)
Skin immune system
Barrier protection (mechanical, chemical, uv, keeps in water)
Sensation (temp, pain, touch)
Vitamin D synthesis
Interpersonal communication

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4
Q

Why is skin disease important?

A
Disfigurement (acne scars) 
Disability 
Discomfort (itch) 
Depression 
Death
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5
Q

What are the external causes of skin disease?

A
Temperature 
Ultraviolet light 
Chemical 
Infection 
Trauma
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6
Q

What are the internal causes of skin disease?

A
Systemic disease 
Autoimmune 
Genetics 
Drugs 
Infection
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7
Q

What is a macule?

A

Small circumscribed and flat lesion

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8
Q

What is a patch?

A

Large circumscribed and flat lesion

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9
Q

What is a papule?

A

Small raised area

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10
Q

What is a plaque?

A

Large raised area

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11
Q

What is a vesicle?

A

Small fluid filled area

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12
Q

What is a bulla?

A

Large fluid filled area

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13
Q

What is a pustule?

A

Small pus filled area

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14
Q

What is an abscess?

A

Large pus filled area

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15
Q

What is an erosion?

A

Loss of epidermis, heal well without scarring

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16
Q

What is an ulcer?

A

Lossof epidermis and dermis, heal with scarring

17
Q

What are petechiae?

A

Small haemorrhages under the skin

18
Q

What are purpura?

A

Larger haemorrhages under the skin

19
Q

What is acanthosis nigricans associated with?

A

Insulin resistance
Obesity
Malignancy

20
Q

What is eruptive xanthoma associated with?

A

Hyperlipidaemia

21
Q

What is myxoedema?

A

Deposition of mucin in the skin

22
Q

What should be done if a bacterial infection is suspected?

A

Charcoal swab, send for microscopy, culture and sensitivities

23
Q

What should be done if a viral infection is suspected?

A

Viral swab for PCR

Throat swab for systemic illness

24
Q

What should be done if a fungal infection is suspected?

A

Skin scraping
Nail clipping
Hair sample
Fungal cultures