Neonatal acne. Papules and pustules on cheek of 3-week-old.
Resolving neonatal acne on cheeks of 3-month-old.
Acne vulgaris. Open comedones (blackheads).
Acne vulgaris. Teen with red papules and pustules on face.
Acne vulgaris. Pustules, red papules, open and closed comedones demonstrating lesions in different stages at one time.
Nodulocystic acne. Red cyst on face of adolescent.
Excoriated acne vulgaris. Atrophic scars eventuate from excoriations.
Hypertrophic scar in nodulocystic acne.
Nodulocystic acne with red nodules, cysts, papule and pustules on teenage boy’s back and shoulder.
Steroid rosacea. Perioral involvement with red papules and pustules. Note lower eyelid involvement.
Steroid rosacea. Perioral and perinasal red papules in 6-year-old boy.
Steroid rosacea. Perinasal and lower eyelid pustules.
CLINICAL FEATURES
Acne is a disorder of sebaceous follicles that are found on the head, chest and back. It is androgen dependent as sebaceous follicles convert circulating androgens to DHT, resulting in plugging of the follicles with cells, increased sebum production, overgrowth of the bacteria P. acnes
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