Non-Inflammatory Skin Diseases Flashcards
what is the pathology of vitiligo
autoimmune, loss of melanocytes
what are the types of epidermolysis bullosa
simplex, junctional, dystrophic, aquista
what layer of the skin is affected for epidermolysis bullosa to scar
dermis (dystrophic type)
what is a haploinsufficiency mutation
1 working copy, 1 inactivated from mutation
what is the presentation of epidermolysis bullosa
skin falls off, tight mitten hands
what is a comedone
clogged pilosebaceous unit
what is the difference between a blackhead and a whitehead
whitehead: closed comedone
blackhead: open comedone
what type of bacteria colonise the duct in acne vulgaris
anaerobic diphtheriods
what occludes in the duct in acne vulgaris
keratin and sebum
what areas of the body are affected by acne vulgaris
sebaceous gland site; face, chest, back
what age some risk factors for acne vulgaris
FH, contraceptive pill, teenager, CCS, drugs
what is the first line management of acne vulgaris
PO doxycycline + TOP retinoid + benzyl peroxide
what kind of drug is benzyl peroxide
keratolytic
what kind of drug is a retinoid
vit A derivative
what is the 2nd line management of acne vulgaris
PO isotrenitoin + PO contraceptive
what type of drug is isotrenitoin
systemic retinoid
what has to been considered when prescribing isotrenitoin
only hospital can prescribe and teratogen, also many side effects
what is the management of acne vulgaris in a patient that can’t tolerate isotrenitoin
PO steroids and dapsone cream
what condition is linked to acne rosacea
rhinophyma
what ages are affected by acne rosacea
30-60 years
what gender is more commonly affected by acne rosacea
females
what infecting organism is found in acne rosacea
demodex mites
what areas are affected by acne rosacea
central face, chin, forehead
what are the triggers of acne rosacea
alcohol, spine, temp, UV
are there comedones in rosacea
no
what is the pathology of rosacea
vascular ectasia, perifollicular granulomas
what is the 1st line management of rosacea
PO tetracycline or TOP metronidazole, suncream
what managements can be considered 2nd line for rosacea
isotrenitoin, telangiectasia vascular laser
what is the inheritance pattern of tuberous sclerosis
autosomal dominant but new mutations common
what is mutated in tuberous sclerosis
tuberin / hamartin tumour regulating genes
what areas of the body are affected by tuberous sclerosis
nails, teeth, skin, heart, lung kidney
what is seen on the nails in tuberous sclerosis
periungual fibromata and longitudinal nail ridging