dermatology

Question 1

most common skin cancers

Answer 1

in order of most common:
basal cell carcinoma
squamous cell carcinoma
melanoma

Question 2

greatest risk of metastasis

Answer 2

in order of most common:
melanoma
squamous cell carcinoma
basal cell carcinoma

Question 3

locally invasive

pink, pearly nodules with telangiectasias, rolled borders, central ulceration

Answer 3

basal cell carcinoma

Question 4

skin cancer with “palisading” nuclei

Answer 4

basal cell carcinoma

Question 5

locally invasive
lesion on face, lip, ears, hands
actinic keratosis is a precursor (scaly plaque)

Answer 5

squamous cell carcinoma

Question 6

keratin “pearls”

Answer 6

squamous cell carcinoma

Question 7

S-100 is tumor marker for

Answer 7

melanoma

Question 8

depth of tumor correlates with

Answer 8

risk of metastasis in melanoma

Question 9

treatment of melanoma

Answer 9

a biopsy that allows you to determine depth of lesion and thus, risk of metastasis
excisional biopsy - entire lesion + margins cut out or
deep punch/full-thickness biopsy

Question 10

nests of melanocytes that fill dermis and obscure the epidermal-dermal border

Answer 10

melanoma

Question 11

ABCDEs of melanoma

Answer 11

Asymmetry
Border irregularity
Color variation
Diameter >6 mm (size of pencil head)
Evolution overtime