Acne

Question 1

bacteria associated with acne

Answer 1

propionibacterium acnes

Question 2

why does acne occur in puberty

Answer 2

androgens cause sebaceous hyperplasia -> increased sebum production

Question 3

most common type of acne?

Answer 3

acne vulgaris

Question 4

3 types of superficial lesion in acne vulgaris?

Answer 4

• open and closed comedones (black heads and whiteheads)
• papules (small, tender red bumps)
• pustules (white squeezable spots)

Question 5

deeper lesions in acne vulgaris

Answer 5

nodules (large painful red lumps)

pseudocysts

Question 6

secondary lesions acne vulgaris

Answer 6

excoriations
erythmatous macule (red marks from recently healed spots)
pigmented macule (dark from older spots)

Question 7

type of acne

Answer 7

acne vulgaris (most common - vulgaris = common)
oil acne (industrial worker who have contact with oil)
-acne fulminants

Question 8

what is acne fulminants

Answer 8

rare, young male adolescents
severe necrotic and crusted lesions
-malaise, pyrexia, arthralgia, bone pain

Question 9

treatment of acne fulminantss

Answer 9

oral pred
analgesics
oral isotretinoin

Question 10

treatment options for acne

Answer 10

• keratolytics
• antibiotics (start topical, oral if if doesn’t work) clindamycin 1%
• benzoyl peroxide/azelaic acid
• retinoids (start topical, oral if if doesn’t work)
• anti androgens (suppress sebum production)
• tetracycline

Question 11

what are retinoids?

Answer 11

synthetic vit A analogues. isotretinoin or acitretin

Question 12

side effects of retinoid

Answer 12

TERATOGENIC
hair thinning
dry skin