geriatric derm Flashcards
UV light causes which changes to skin (4)
- DNA damage
- decr DNA repair
- oxidative and lysosomal damage
- altered collagen structure
wat is the only agent shown to be effective against treating photodamage
tretinoin
erythema and greasy looking scales on hairline, nasolabial fold, midline chest
seborrheic dermatitis
seborrheic dermatitis is more common in who?
PD
diffuse erythema and erythematous papules and papulopustules seen on cheeks, forehead, chin
rosacea
early rhinophyma
rosacea
what is xerosis
dryness
what should moisterizing agents used for xerosis contain?
lactic acid or alpha-hydroxy acids to reduce roughness
chronic, pruritic condition d/t anxiety
neurodermatitis
moist erythema, maceration, superficial erosion in web space b/w 4th-5th toes
intertrigo
intertrigo is most commonly caused by
candida
tense fluid filled and hemorrhagic bullae on normal or erythematous base; on trunk and extremities; autoimmune
bullous pemphigoid
proliferation of keratinocytes, usu benign
cutaneous horns
decr venous return triggered by chronic venous HTN and incompetent valves; on medial supramalleolar areas with pruritis and potential for ulceration
stasis dermatitis
yellow, thickened and friable nails with yellow brown debris under nail plate
onychomycosis
what causes a majority of onychomycosis infxns
dermatophytes
tx of onychomycosis
oral terbinafine, fluconazole, itraconazole
vesicles on the tip of the nose; affecting the nasociliary branch of trigeminal nerve
hutchinson’s sign
similar to intertrigo, but also has peripheral satellite pustules; assc’d wtih incr skin moisture or friction, poor hygiene, DM
candidiasis
benign. Age >40; tan gray black waxy or warty papules and plaques with stuck on appearance; confused with melanoma
seborrheic keratoses
most common acquired cutaneous vascular proliferations
cherry angiomas
round, bright red, dome shaped papules; benign; dilated congested capillaries
cherry angiomas
rough, scaly, red brown macules on sun exposed areas; considered pre-malignant
actinic keratoses
2nd most common form of skin cancer
SCC
pearly papule that is ulcerated in center with characteristic rolled border
BCC
most common cancer in US
BCC
