Acne Vulgaris Flashcards
pathognomonic for acne
microcomedones
Acne Vulgaris
MICROCOMEDONE IS THE PATHOGNOMIC LESION
black vs white comedones
open comedones has oil contents exposed to air, turning them black.
closed comedones are white.
acne type
comedonal acne (black)
acne type
papulo-pustular acne
- more eruptions
- can be due to medicines like steroids
type of acne
cystic acne
acne can cause keloid scars
treatment for mild comedonal acne (whiteheads and black heads)
- topical retinoids (tretinoin)
- or a combo with benzoyl peroxide)
treatment for mild papular or pustular acne
topical antibiotic-benzoyl peroxide combination
- clindamycin+BP
- erythromycin + BP
cystic acne treatment
- for deeper seated lesions, consider doxycyclin in addition to retinoid and a benzoyl peroxide.
- if it doesn’t work, consider oral course of Abx for 3 months. Patients taking oral tetracycline antibiotics should be cautioned regarding photosensitivity and the need for sun protection and avoidance.
treatment for severe or intractable moderate acne.
accutane
hormone therapy for hormonal acne in women
which gender is most likely to get acne
. Women are more likely than men to have acne in adulthood, which in many cases is thought to be hormonally driven.
pathogenesis of acne
- increased sebum production
- follicular hyperkeratinization
- proliferation of the bacterium propionibacterium acnes
- inflammation
steps 1-3 causes a comedone
T/F: drug induced acneiform eruptions are usually white and black comedones
false.Drug-induced acneiform eruptions are typically comprised of monomorphic inflammatory papules and pustules rather than open and closed comedones (blackheads and whiteheads).
how do cysts form ?
Involvement of many pilosebaceous units together, which usually happens at a deeper level of the dermis and subcutaneous tissue, can result in nodules and cysts. Nodules are solid while cysts have a cavity.
