Dermatology · UKMLA & AKT
Acne vulgaris
A free high-yield preview for the UKMLA Applied Knowledge Test, covering how to recognise this condition. The full SA Note notes add investigations, management and complications, with practice questions on this topic.
Key high-yield points
- Affects face, upper chest, upper back (highest density of pilosebaceous units)
- Comedones - open (blackheads) or closed (whiteheads); non-inflammatory; presence of comedones distinguishes acne vulgaris from rosacea
- Papules - small (<5mm), raised, red inflammatory lesions
- Pustules - papules containing visible pus
- Nodules - larger (>5mm), deeper, firmer; extend into dermis; more likely to scar
- Cysts - fluctuant, deep, pus-filled; most severe; prone to rupture and scarring
- Always assess psychosocial impact - anxiety, depression, school/work attendance
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