AAD benign skin lesions Flashcards
if you are unsure if something is seborrheic keratosis, what can you do? (2)
pick/scratch it– it would crumble and reveal the superficial waxy character
dermoscopy– keratin pseudocysts (small white circular spots)
multiple small hyperpigmented, sessile to filiform smooth surfaced papules that arise in darker skin usually on cheeks and temples
dermatosis papulosa nigra (SK variant)
how is dermatosis papulosa nigra treated
very light electrodessication
small harmless white-gray SKs on dorsal feet/ankles of older light-skinned people
stucco keratoses
4 ways to treat stucco keratoses
cryotherapy
curettage
electrodessication
OTC ammonium lactate lotion/cream
skin-colored to brown, pedunculated, fleshy papules that is normally asymp but can be painful if irritated or secondary to infarction
acrochordon (skin tags)
where can you find skin tags
eyelids, neck, axillae, groin
caused by genetics, obesity, friction and more common in pregnancy; may be a marker of insulin resistance
acrochordon
3 ways to electively remove acrochordons
snipping w/ pressure or aluminum chloride
liquid nitrogen for lighter kin
electrodessication
round to oval, SUPERFICIAL BRIGHT RED, dome-shaped PAPULES ranging in size; common acquired vascular proliferation
cherry angiomas
round to oval, SUPERFICIAL BRIGHT RED, dome-shaped PAPULES ranging in size; common acquired vascular proliferation
cherry angiomas
when do cherry angiomas usually develop? where are they most concentrated?
develop in 4th decade and increase in # over time
highest concentration on trunk
what is a traumatized cherry angioma
when cherry angiomas bled or thrombose so they look like melanoma; if unsure biopsy or refer
benign tumor of skin often on extremities; firm, hyperpigmented dome-shaped papules with RIM OF DARKENING PIGMENT
dermatofibroma
what is the dimple sign and which condition is it associated with?
you pinch both sides of lesion and it dimples d/t scar like tethering of dermis
associated with dermatofibroma
spots d/t sun damage but is not cancer or precancer; if person has a lot of it it reflects hx of UV exposure so it can help idenitfy ppl at risk for skin cancer
solar lentigines
sebaceous gland enlargements causing yellowish skin colored smooth papules with umbilication d/t gland growth around a central hair follicle
sebaceous hyperplasia
visual differences between sebaceous hyperplasia & BCC
SH: yellow, umbilication, mulitple similar papules; rarely bleeds or form crust
BCC: pearly waxy appearance often with telangiectasia; will bleed or scab easily
Benign mobile dermal nodule, often w/ an overlying punctum; Compressible cystic mass
epithelial inclusion cyst
does an inflamed EIC need oral abx? how are those tx? can we excise them?
no oral abx needed– its sterile
may need I&D or kenalog injection for inflammation
don’t excise d/t higher risk of infection and recurrence
Fluid-filled, intradermal cyst that forms from a hair follicle mostly on scalp; have keratin & its products
pilar cyst
