This document contains all the relevant student knowledge pertaining to acne vulgaris and rosacea. It includes:
Pathophysiology
Symptoms
Diagnosis
Treatment
A Acne vulgaris A chronic
inflammatory dermatosis characterised
by Comedones and inflammatory lesions
Pathogenesis
1 Follicular hyperkeratinisation 80 of peopleaged 11 30 will
2 Propionbacterium aches colonisation acne
get
3 T sebum production Hormones PCOS cosmetics
stress
Clinical features
Non inflammatory e.g Comedones or
white heads and blackheads inflammatory
g pustules papules andnodules
e
maybe seborrhea greasy skin
There
Complications include scarring and post inflammatoryhyperpigment
PCOS hyperandrogenism should be suspected in women with irregular
periods hirsutism alopecia and t hair growth in male areas
Investigations
Usually diagnosed clinically
If PCOS is suspected Total free testosterone LH FSH ratio
and serum DHEA
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