Skin malignancies 1 Flashcards
hyperpigmentation due to epidermal hyperplasia causes?
seborrheic keratosis
tan to black papule, “stuck on,” irregular shape, 2mm-3cm
Seborrheic keratosis
seborrheic keratosis tx
reassurance.
cosmetic: cryotherapy, curretage, shave, biopsy
scale/dry/rough patch, skin-colored (or pink or darker), often on sun-exposed areas
Actinic keratosis
etiology of actinic keratosis
sun exposure, age-related
actinic keratosis tx
5-fluorouracil cream (chemo)
imiquimod (immune modulator)
cosmetic: cryotherapy, curretage, etc
low fat diet?
abn growth of basal layer
Basal cell carcinoma
Firm module or papule, rolled borders, teleangiectasias, pink/red/yellow/translucent, “pearly”
basal cell carcinoma
BCC tx
BIOPSY!
removal: curretage, electrodessication, Mohs, cryotherapy, 5-FU
variable presentation: hard plaques, papules, nodules- ulcerations
Squamous cell carcinoma
SCC risk factors
sun exposure, untreated AK, chemical exposure (Arsenic &/or hydrocarbons), hx of HPV, immunodeficiencies, leukoplakia, skin injury (scar)
SCC tx
biopsy!
surgical resection- Mohs
electrodessication, cryotherapy
**Follow up- high recurrence
untreated actinic keratosis can lead to?
squamous cell carcinoma
ABCDE
A: Asymmetry B: Border irregularity C: Color uneven D: Diameter > 6 mm E: Edges are raised
most common malignant melanoma, appears in previously normal mole
first appears as flat or slightly raised discolored patch w/ irregular borders
superficial spreading melanoma
