Dermatology

Question 1

Seborrhoeic keratoses Fx

Answer 1

benign lesion found on older people
light-brown to black
‘stuck-on’ appearance
keratotic plugs

Question 2

Acne Rosacea Mx

Answer 2

mild/moderate: topical metronidazole
severe/resistant: oral tetracycline

Question 3

Acne Rosacea Fx

Answer 3

flushing
rash across nose, cheeks
worse in sunlight
telangiectasia

Question 4

bullous pemphigoid Ix

Answer 4

immunofluorescence IgG and C3

Question 5

erythema nodosum Fx

Answer 5

symmetrical, erythematous, tender, nodules which heal without scarring

Question 6

erythema nodosum causes

Answer 6

streptococcal infections
sarcoidosis
inflammatory bowel disease
drugs (penicillins, sulphonamides, oral contraceptive pill)

Question 7

venous ulcer Mx

Answer 7

compression bandage

Question 8

viral infections leading to skin conditions
HSV
Herpes zoster
HHV6
poxvirus

Answer 8

herpes simplex - eczema herpeticum
herpes zoster - chickenpox
HHV6 - roseola
poxvirus - molluscum contagiosum

Question 9

Blisters/bullae
no mucosal involvement:
mucosal involvement:

Answer 9

no mucosal involvement: bullous pemphigoid
mucosal involvement: pemphigus vulgaris

Question 10

lichen planus Mx

Answer 10

1st - hydrocortisone (steroid) cream
2nd -PO azathioprine/ prednisolone

Question 11

lichen planus Fx

Answer 11

itchy papular rash palms, soles, genitalia, flexor surface of arms

Question 12

hyperhidrosis (excessive sweating) Mx

Answer 12

Aluminium chloride

Question 13

impetigo Mx

Answer 13

1st - hydrogen peroxide 1% cream
2nd - topic fusidic acid
3rd - oral fluclox

Question 14

basal cell ca Fx

Answer 14

pearly, flesh-coloured papule with telangiectasia
sun exposed areas - head, neck, nose

Question 15

coeliac disease associated skin lesions

Answer 15

dermatitis herpetiformis

Question 16

Pompholyx eczema Fx

Answer 16

worse in humidity and high temperatures (summer)
vesicular hand dermatitis

Question 17

seborrhoeic dermatitis complications (2)

Answer 17

otitis externa
blepharitis

Question 18

psoriasis Mx

Answer 18

1st - topical steroid (am) + Vit D analogue (calcipotriol) (pm)
2nd - increased Vit D analogue (BD)
3rd - increase topical steroid (BD)
4th - coal tar preperation
5th (in hospital) - UVB/ PUVA (UV therapies)

Question 19

psoralen + ultraviolet A light (PUVA) for psoriasis side effect

Answer 19

squamous cell ca

Question 20

alopcia areata Mx

Answer 20

refer to dermatology
watchful wait
topical steroid

Question 21

diabetic shin involvement

Answer 21

Necrobiosis lipoidica - shiny, painless areas of yellow/red/brown skin
often associated with surrounding telangiectasia

Question 22

Seborrhoeic dermatitis Mx

Answer 22

topical ketoconazole

Question 23

Seborrhoeic dermatitis association (2)

Answer 23

HIV
parkinsons

Question 24

psoriasis drug exacerbation causes (6)

Answer 24

B blocker
Lithium
ACEi
NSAIDs
anti malarials
alcohol

Question 25

Vitamin B2 (riboflavin) deficiency Fx

Answer 25

angular cheilosis - red crusted lesions around mouth

Question 26

Chondrodermatitis nodularis helicis Fx

Answer 26

benign, painful nodule on the ear, more common in men

Question 27

Lichen sclerosus Fx

Answer 27

itchy white spots typically seen on the vulva of elderly women

Question 28

Guttate psoriasis Fx

Answer 28

Preceded by (streptococcus) sore throat
Tear drop, scaly papules on trunk and limbs

Question 29

Capillary hemangioma (strawberry naevus) Mx

Answer 29

1st - watch and wait
2nd - Propranolol

Question 30

Telogej effluvium Fx

Answer 30

Global Loss and thinking of hair in response to stress (no focal points of complete loss)

Question 31

Pretibial myxoedema Fx

Answer 31

Graves disease
Orange peel shin lesions symmetrical

Question 32

Pityriasis rosea Fx

Answer 32

larger patch followed by other lesions

Question 33

Onychomycosis (fungal nail infection) Mx

Answer 33

Oral Terbinafine (antifungal)