Derm Flashcards
2 classifications of acne
inflammatory vs noninflammatory
tx for comedonal acne
retinoids
backbone of acne tx
retinoids
tx for inflammatory acne (5)
retinoids plus
1. topical abx: clindamycin
2. oral abx:
Doxycycline
Minocycline
3. Spironolactone
4. Isotretinoin
which acne tx is a high risk med
Isotretinoin - oral retinoid
s.e of clindamycin
C. diff complications
s.e of minocycline
hyperpigmentation
major s.e of minocycline and doxycycline
pseudomotor cerebri
what bacteria causes acne
cutibacterium acnes
hidradenitis supporative acne
terrible life altering acne in interiginous zones
smokers, obesity
tx:
- minimize contributing lifestyle factors
- treat like acne:
oral doxy/mino
antiseptic washes
rosacea tx (4)
- avoid triggers
- oral doxycycline and minocycline
- topical clindamycin
* *4. v beam and pulse dye laser**

rosacea rhinophyma/phymatous rosacea tx
oral doxycycline, minocycline
do not use steroids

pitting and oil spots and adherent silvery white scaly plaques
psoriasis
psoriasis is ___ inflammation
systemic
Auspitz sign
psoriasis
pinpoint bleeding when scale is removed
tx for psoriasis
- topical steroids + vitamin D
- biologics → methotrexate (DMARDS)
- phytotherapy
- always order labs
guttate psoriasis is preceded by
classic streptococcal pharyngitis or URI
inverse psoriasis is easily confused with
fungal infection
pruritic patch or plaque w. scaling excoriations
eczema
atopic dermatitis is a type of
eczema
atopic dermatitis triad
allergies
asthma
eczema
tx for atopic dermatitis
moisturizer!
Dupixent (Dupilumab) → biologic

allergic contract dermatitis is a __ rxn
type IV delayed rxn
tx for allergic contact dermatitis
remove offending agent
moisturizer
topica/oral steroids
allergy testing referral
Asteatotic Eczema is
regular dry skin
most common human malignancy
basal cell carcinoma
basal cell carcinoma is characterized by
pink, pearly, telangiectatic papules
non healing pimple or bleeding mole
tx for basal cell carcinoma
Mohs micrographic surgery
second most common type of cutaneous non melanoma skin cancer
squamous cell
what cancer are AKs associated with
squamous cell
tx for squamous cell carcinoma
mohs micrographic surgery
topical chemo (5 fluorouracil)
5th most common cancer in men; 6th most common cancer in women
melanoma
melanoma is characterized by
ABCDEs
according to Breslow’s depth of _ or greater signifies aggressive _
0.8; melanoma
pearly pink dome shaped papule w. central umbilication
molluscum contagiosum
where is herpes simplex virus 1 found in the body
dormant in dorsal root ganglion
painful, grouped uniform appearing vesicles on an erythematous base
herpes simplex 1
honey colored crusting is associated w
herpes gladitorum (mat herpes)
shingles is caused by
herpes zoster
herpes zoster is dormant in
dorsal root ganglion
tx for herpes zoster (shingles)
Acyclovair or Valacyclovair ASAP
tinea and ringworm are what type of inxn
cutaneous fungal
tinea and ringworm are
dermatophytes
most common dz affecting feet and toes
tinea pedis (athlete’s foot)
gold standard to dx tinea pedis
fungal foot culture
but KOH is easier
treatment for most tinea fungal infections
topical: Ketoncazole
systemic: Terbinafine/Fluconazole
exception: tinea capitis
s.e of Terbinafine/Fluconazole
liver damage
gold standard for diagnosing cutaneous fungal infections
fungal culture
but KOH is easier
tinea cruris is commonly called
jock itch
scaly macule/patches w. serpiginous and scaly borders and central clearing
tinea corporis
tinea corporis pt’s often think they have
eczema
two feet, one hand syndrome
tinea manuum
tinea capitis is associated w.
kerions: tender, boggy, soft plaques and pustules
gold standard tx for tinea capitis
Griseofulvin
candidiasis infxns are associated with
satellite pustules
tinea versicolor is characterized by
hypopigmented patches with a fine scale
spaghetti and meatballs
microscope/KOH appearance of tinea versicolor