Derm

Question 1

target lesions

Answer 1

erythema multiforme
Happens as a result of infection, usually self-limiting

Question 2

light brown papules with a depressed center

Answer 2

molluscum contagiosum
caused by a poxvirus, in children/immunocompromised people

Question 3

eczema Mx

Answer 3

emollients
topical hydrocortison / eumovate

Question 4

Px of psoriasis

Answer 4

demarcated plaque, scaly, pink
nail onchylosis

Question 5

Mx of psoriasis

Answer 5

vitamin d analogue
UV therapy

Question 6

muscle pain and weakness
eczema on knuckles/elbows
photosensitive rash on back
rash around eyes

Answer 6

dermatomyositis
gottron lesions
heliotrope rash in the periorbital region

Question 7

differentiating between SJS and TEN

Answer 7

SJS: <10% of body, TEN > 10%

Question 8

Px of SJS / TEN

Answer 8

blistering patches all over body, peel to reveal raw flesh
blisters in mucosal membranes e.g. mouth

TEN is >10% of body surface
SJS is <10% of body surface

Question 9

Mx of acne vulgaris

Answer 9

benzoyl peroxide
limecycline
isotretinoin (must be prescribed by dermatologist)

Question 10

difference between cellulitis and erysipelas

Answer 10

cellulitis has poorly demarcated edges
erysipelas is superficial cellulitis

Question 11

cause of hand foot and mouth

Answer 11

coxsackie a virus

Question 12

pearly papule with telangectasia

Answer 12

basal cell carcinoma

Question 13

red ulcerated bump that doesn’t heal

Answer 13

squamous cell carcinoma

Question 14

dark patch, irregular edges, growing bigger, getting darker

Answer 14

melanoma

Question 15

what is assessed to determine severity of melanoma

Answer 15

depth of melanoma
breslow hickness

Question 16

scaly patch across feet, central clearing, inflamed edges

Answer 16

tinea pedis (athletes foot)

Question 17

Mx of scabies

Answer 17

topical permethrin

Question 18

tuberous sclerosis

Answer 18

benign tumours (hamartomas) forming in many organs
fleshy nodules on skin, hypomelanic maculas, cafe au lit patches
seizures, developmental delay

Question 19

NF1, cause

Answer 19

cafe au lait spots
tumours grow in the nervous system

Autosomal dominant

Question 20

NF2

Answer 20

tumours in auditory/opthalmic nerve

bilateral vestibular schwannoma

Question 21

sturge weber

Answer 21

port wine stain
leptomeningeal angioma
(seizures, glaucoma, learning disability)

Question 22

actinic keratosis

Answer 22

sun exposure
scaly crusted lesions

Question 23

Mx of actinic keratosis

Answer 23

Efudix (flourouracil)

Question 24

sebborrheic dermatitis

Answer 24

itchy red plaques, yellow oily crust

eczema that affects the oil glands of face

Question 25

Mx of seb. derm.

Answer 25

ketoconazole shampoo and topical corticosteroid

Question 26

treatment for head lice

Answer 26

4% dimeticone

Question 27

Blanching red lesions developing on lips, tongue, chest, ears, hands, feet
What is it? Most common initial presentation? Cause?

Answer 27

Hereditary haemorrhagic telangectasia
Most commonly presents with nosebleeds in early childhood
Autosomal dominant

Question 28

Tuberous sclerosis skin presentation

Answer 28

Subcutaneous nodules
Cafe au lait spots
Hypomelanic patches

Question 29

What is tuberous sclerosis

Answer 29

Hamartomas (benign tumours) develop in brain, eyes, skin
Px: seizures, learning disability

Question 30

example of vitamin D analogue

Answer 30

topical calcipotriol

Question 31

cause of verruca

Answer 31

HPV

Question 32

Mx of verruca

Answer 32

topical salicylic acid
cryotherapy

Question 33

1st line mx of psoriasis

Answer 33

8 weeks of topical steroid and vitamin D analogue

Question 34

2nd line mx of psoriasis

Answer 34

Stop steroid
Start twice daily vitamin d analogue

Question 35

bowens disease
px
mx

Answer 35

scc in situ

red scaly plaque

efudix