DERMATOLOGY Flashcards
Most likely diagnosis:
Flat, non pigmented, mildly erythematous lesion with keratinic hypertrophy (scales and horns)
acitinic keratosis
Management of acitinic keratosis
cryotherapy
large areas or multiple lesions can be treated with topical 5-fluorouracil cream to avoid excess scarring
causes of erythema nodosum
IBD
sarcoidosis
leukaemia/ lymphoma
strep infections
drugs: sulfonamides, penicillins, OCP
causes of erythema marginatum
Infections (HSV, EBV, mycoplasma)
vasculidities (SLE(
Drugs: sulfonamides, penicillins, co-trimoxazole
Pregnancy
(severe- SJS, TEN)
causes of erythema mirgans
Lyme disease
boreillia burgdorferi
apple-jelly lesion
- Lupus vulgaris
cutaneous TB
treat with RIPE
what condition is associated with lupus pernio
Sarcoidosis
what condition is associated with livedo reticularis
SLE
drugs that cause alopecia
cytotoxic drugs
warfarin
heparin
anti thyroid drugs
causes of acanthosis nigricans
insulin insensitivity
gastric carcinoma
acromegaly
obesity
what condition is associated with dermatitis herpetiformis and what is the treatment
Coeliac
Rx: dapsone and gluten avoidence
what deficiency causes dermatitis, dementia and diarrhoea
nicotinic acid (vit B3)
Pellegra
most common form of malignant melanoma
superficial spreading
causes of drug induced SLE and what Abs to test for
sulphonamides
hydralazine
methyldopa
griseofulvin
penicillin
what condition is associated with pyoderma gangranosum and what is the treatment
IBD
RA
idiopathic
Rx systemic steroids eg high does pred
+ non adherent dressing
