Dermatology Flashcards
Seborrhoeic keratoses Fx
benign lesion found on older people
light-brown to black
‘stuck-on’ appearance
keratotic plugs
Acne Rosacea Mx
mild/moderate: topical metronidazole
severe/resistant: oral tetracycline
Acne Rosacea Fx
flushing
rash across nose, cheeks
worse in sunlight
telangiectasia
bullous pemphigoid Ix
immunofluorescence IgG and C3
erythema nodosum Fx
symmetrical, erythematous, tender, nodules which heal without scarring
erythema nodosum causes
streptococcal infections
sarcoidosis
inflammatory bowel disease
drugs (penicillins, sulphonamides, oral contraceptive pill)
venous ulcer Mx
compression bandage
viral infections leading to skin conditions
HSV
Herpes zoster
HHV6
poxvirus
herpes simplex - eczema herpeticum
herpes zoster - chickenpox
HHV6 - roseola
poxvirus - molluscum contagiosum
Blisters/bullae
no mucosal involvement:
mucosal involvement:
no mucosal involvement: bullous pemphigoid
mucosal involvement: pemphigus vulgaris
lichen planus Mx
1st - hydrocortisone (steroid) cream
2nd -PO azathioprine/ prednisolone
lichen planus Fx
itchy papular rash palms, soles, genitalia, flexor surface of arms
hyperhidrosis (excessive sweating) Mx
Aluminium chloride
impetigo Mx
1st - hydrogen peroxide 1% cream
2nd - topic fusidic acid
3rd - oral fluclox
basal cell ca Fx
pearly, flesh-coloured papule with telangiectasia
sun exposed areas - head, neck, nose
coeliac disease associated skin lesions
dermatitis herpetiformis
Pompholyx eczema Fx
worse in humidity and high temperatures (summer)
vesicular hand dermatitis
seborrhoeic dermatitis complications (2)
otitis externa
blepharitis
psoriasis Mx
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)
psoralen + ultraviolet A light (PUVA) for psoriasis side effect
squamous cell ca
alopcia areata Mx
refer to dermatology
watchful wait
topical steroid
diabetic shin involvement
Necrobiosis lipoidica - shiny, painless areas of yellow/red/brown skin
often associated with surrounding telangiectasia
Seborrhoeic dermatitis Mx
topical ketoconazole
Seborrhoeic dermatitis association (2)
HIV
parkinsons
psoriasis drug exacerbation causes (6)
B blocker
Lithium
ACEi
NSAIDs
anti malarials
alcohol
Vitamin B2 (riboflavin) deficiency Fx
angular cheilosis - red crusted lesions around mouth
Chondrodermatitis nodularis helicis Fx
benign, painful nodule on the ear, more common in men
Lichen sclerosus Fx
itchy white spots typically seen on the vulva of elderly women
Guttate psoriasis Fx
Preceded by (streptococcus) sore throat
Tear drop, scaly papules on trunk and limbs
Capillary hemangioma (strawberry naevus) Mx
1st - watch and wait
2nd - Propranolol
Telogej effluvium Fx
Global Loss and thinking of hair in response to stress (no focal points of complete loss)
Pretibial myxoedema Fx
Graves disease
Orange peel shin lesions symmetrical
Pityriasis rosea Fx
larger patch followed by other lesions
Onychomycosis (fungal nail infection) Mx
Oral Terbinafine (antifungal)
