Acne and Rosacea Flashcards Preview

Y2 Dermatology > Acne and Rosacea > Flashcards

Flashcards in Acne and Rosacea Deck (25)
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1

bacterium associated with acne

proprionibacterium acnes

2

hormones that increase the basal keratinocyte proliferation in the pilosebaceous unit (acne)

androgens and corticotrophin releasing hormones

3

comodones are...

black and white heads which block secretions --> papules, nodules, cysts and scars

4

most with acne have increased androgens - TRUE/FALSE

FALSE - however the sebaceous glands are more sensitive to androgens particularly in puberty

5

mild acne can be described as...

mainly facial comedones

6

mild acne can be treated with...(3)

topical - benzyl peroxide, retinoids, antibiotics (doxycyline)

7

How long can acne treatment take to be effective?

8 weeks

8

moderate acne can be described as...

inflammatory lesions dominate (papules and pustules) affecting the face +/- the torso

9

treatment for moderate acne (3)

topical antibiotic combined with benzoyl peroxide, topical retinoid, oral antibiotic with topical benzoyl peroxide for 6 months (doxycycline or tetracycline, erythromycin if pregnant)

10

Severe acne can be described as...

nodules, cysts, scars and inflammatory papules and pustules and should be referred

11

treatment for severe acne

isotretinoin - hospital only prescribing

12

treatments for acne which should be avoided in pregnancy

isotretinoin and some antibiotics

13

side effects of isotretinoin

initial flare up for 2-3 weeks, skin and mucosal dryness, depression

14

success rate of isotretinoin

~65% have permanent clear up

15

mechanism of action of isotretinoin

decreased sebum production and pituitary hormones

16

rosacea can be described as...

a chronic relapsing and remitting disorder of blood vessels and pilosebaceous units in the central facial areas typically in fair skinned people

17

areas commonly affected by rosacea

nose, chin, cheeks, forehead

18

groups commonly affected by rosacea

30-60years, males and females

19

rosacea has papules, pustules, erythema and comedones - TRUE/FALSE

FALSE - rosacea has papules, pustules and erythema but NO comedones

20

pre-rosacea features include...(3)

flushing caused by stress, alcohol and spices

21

signs of rosacea (4)

central facial rash with erythema, inflammatory nodules and facial lymphoedema, blepharitis and conjunctivitis, rhinophyma in men

22

what is rhinophyma?

swelling and soft tissue overgrowth of the nose

23

Things to avoid in the treatment of rosacea (2)

avoid exacerbating factors, avoid topical steroids

24

treatment for rosacea

topical metronidazole, ivermectin (to reduce demodex mite), oral tetracyclines long term

25

treatment for more resistant rosacea

isotretinoin, lasers for telangiectasia and rhinophyma