Dermatology

Question 1

What is the least common type of skin cancer?

Answer 1

Malignant melanoma

Question 2

Which type of skin cancer presents in different places in men and women, and where does each type present?

Answer 2

Malignant melanoma
Women: legs
Men: trunk

Question 3

Which type of skin cancer is most likely to ooze?

Answer 3

Malignant melanoma

Question 4

Recall the scoring system used by NICE to determine whether a pt gets 2-week-waited for a skin lesion

Answer 4

2 points for: asymmetry, colour irregularity and evolution of lesion in size
1 point for: diameter .7mm, inflammation, oozing and change in sensation
Score of 3+ –> 2 week wait

Question 5

In which demographic is acral lentiginous melanoma most common?

Answer 5

Darker skin types

Question 6

If a skin lesion has a ‘stuck-on’ appearance, what is it most likely to be?

Answer 6

Seborrhoeic wart

Question 7

Which type of melanoma is most likely to appear on the face of the elderly?

Answer 7

Lentigo maligna

Question 8

What is the most common subtype of melanoma?

Answer 8

Superficial spreading

Question 9

How is melanoma definitively diagnosed?

Answer 9

Full thickness excisional biopsy

Question 10

Which type of skin cancers are likely to metastasise and which are not?

Answer 10

Melanoma: may metastasise

Basal cell: probably won’t

Question 11

What is the most common type of skin cancer?

Answer 11

Basal cell

Question 12

Which type of skin cancer is likely to be described as having a “pearly edge”?

Answer 12

Basal cell carcinoma

Question 13

Which types of skin cancer may have an ulcerated centre?

Answer 13

Basal cell, squamous cell

Question 14

Which type of skin cancer may have surface telangiectasia?

Answer 14

Basal cell

Question 15

What is the first line of management in suspected basal cell carcinoma?

Answer 15

Routine referral to dermatology - NOT 2 week wait

Question 16

How do squamous cell carcinomas appear?

Answer 16

Keratotic (scaly and crusty)
Everted edges
May ulcerate

Question 17

Should suspected squamous cell carcinomas be referred to derm on a 2 week wait or routinely?

Answer 17

2 week wait

Question 18

Which type of skin cancer is most likely to appear at the nose?

Answer 18

Basal cell

Question 19

Which virus causes molluscum contagiosum?

Answer 19

Pox

Question 20

Which age group are most likely to get molluscum contagiosum?

Answer 20

1-4 year olds

Question 21

Which benign skin disease are HIV+ patients particularly at risk of getting?

Answer 21

Molluscum contagiosum

Question 22

How is the appearance of molluscum contagiosum lesions described?

Answer 22

Pearly white papules with central umbilication

Question 23

What is erysipelas?

Answer 23

Distinct form of superficial cellulitis which is sharply demarcated

Question 24

Describe the symptoms of erysipelas

Answer 24

As well as well-demarcated area of superficial cellulitis they will be systemically unwell with fever and rigors

Question 25

Which type of cellulitis is a medical emergency?

Answer 25

Orbital

Question 26

Describe the management of mild cellulitis

Answer 26

``` Draw around lesion If on leg, elevate Encourage oral fluids Analgesia Oral antibiotics (often fluclox) ```

Question 27

Define necrotising fasciitis

Answer 27

Rapidly spreading infection of the deep fascia with secondary tissue necrosis

Question 28

What sort of bacteria cause necrotising fasciitis?

Answer 28

Group A beta-haemolytic streptococcus

Question 29

What is another name for eczema?

Answer 29

Dermatitis

Question 30

Which type of dermatitis is a type I reaction and which type is type IV?

Answer 30

Type I - atopic dermatitis | Type IV - contact dermatitis

Question 31

Describe the appearance of seborrhoeic dermatitis

Answer 31

Yellow, greasy scales on face and around eyebrows

Question 32

What is eczema herpeticum?

Answer 32

HSV infection in eczema sufferer

Question 33

Which typeof eczema is a medical emergency?

Answer 33

Eczema herpeticum

Question 34

Recall the appropriate invetsigations for atopic eczema and contact dermatitis

Answer 34

Atopic: clinical diagnosis | Contact dermatitis: skin-patch testing

Question 35

Define psoriasis

Answer 35

Chronic inflammatory skin disease due to hyperproliferation of keratinocytes

Question 36

What is Auspitz sign?

Answer 36

Removal of a scale from a lesion causing bledding: positive in psoriasis

Question 37

In which condition do you get telescoping fingers?

Answer 37

Psoriatic arthritis

Question 38

Describe the appearance of chronic plaque psoriasis

Answer 38

Red patches with silver scales

Question 39

Recall the management of erythema multiforme

Answer 39

None as it is usually self-limiting

Question 40

What is the most common infective cause of erythema multiforme?

Answer 40

HSV

Question 41

What sort of skin disease do neoplasms of the blood increase the risk of?

Answer 41

Erythema multiforme

Question 42

Describe the appearance of erythema multiforme

Answer 42

Target lesions

Question 43

Which drug is linked with causing erythema multiforme?

Answer 43

Penicillin

Question 44

Define Stevens-Johnson syndrome

Answer 44

Severe skin disease of TWO mucosal sites

Question 45

Describe the presentation of SJS

Answer 45

Systemically unwell and in shock (hypotension with tachycardia) Lesions are targetoid