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Acne. Dr. Amal Kokandi. Acne. Very common Begins usually at sebarche (preceds menarche by > year) Polymorphic, inflammatory dis. Of pilosebacious follicles in skin of face and trunk. KAU clinic-women section. Normal Pilosebaceous Unit. Pathophysiology.
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Acne Dr. Amal Kokandi
Acne • Very common • Begins usually at sebarche (preceds menarche by > year) • Polymorphic, inflammatory dis. Of pilosebacious follicles in skin of face and trunk
Pathophysiology • Increased sebum secretion (androgens) • Abnormal keratinisation of follicular epithelium • Proliferation of Propionibacterium acnes • Inflammation
Lesions • Comedones: white and black • Papules • Pustules (pimples) • Nodules • Cysts • Scars (atrophic and hypertrophic) • PIH
Severity • Photographic ( Leeds) • Mild, moderate, severe • Site • Counting methods
Impact • Self esteem • Depression
Believes • Relation to food (chocolate, fat, dairy products, iodine) • cause • therapy • Stress • Periods
Treatment • Lesion type, site and severity • Prior treatment experience and response • Acne scarring • Psychosocial disability • Social status
Treatment: Topicals • Retinoids (tretinoin, isotretinoin, and adapalene) • Benzoyl peroxide • Antibiotics (erythromycin, tetracycline & clindamycin) • Azeliec acid • Others (salycilic acid….)
Treatment: systemic • Systemic antibiotics (oxytetracycline, minocycline, doxycycline, erythromycin in pregnancy…..)
Treatment: systemic • Hormonal therapy: oral contraceptives (↑sex hormone binding globulin→↓ free testosterone & may ↓ovarian testosterone), Cyproterone acetate+ethinylestradiol (Dianette) • Oral isoteritinoin (Roaccutane) • teratogenecity • !! Dose & duration • Side effects • monitoring
Treatment (others) • Cautery for macrocomedones • Cryotherapy • Light therapy (blue or blue-red), photodynamic therapy and radiofrequency