Derm meds and Benign cutaneous neoplasms

Question 1

estimate body surface area

Answer 1

palm is about 1%

Question 2

abreviation: by mouth, every day, as needed

Answer 2

PO, QD, PRN

Question 3

Where would you use class 1 steroids? Class 7?

Answer 3

severe dermatoses on nonfacial and nonintertriginous areas; Areas of thin skin, flexural surfaces

Question 4

where is the receptor for steroids.

Answer 4

nucleus, affects DNA

Question 5

Retinoids: what? what for? why not? how long?

Answer 5

vit A derivatives, severe acne, teratogenic, take months to see effect (affect basal cells)

Question 6

oral tetracyclines: mechanism

Answer 6

interfere with attachment of tRNA to mRNA

Question 7

5-FU

Answer 7

chemotherapeutic, inhibits thymidylate synthase

Question 8

Methotrexate

Answer 8

inhibits dihidrofolate reductase (no thymine synthesis)

Question 9

Seborrheic keratosis

Answer 9

“stuck on”. Benign. Not sun-related

Question 10

Dermatosis papulosa nigra

Answer 10

tiny SKs in ppl of darker skin. Do NOT freeze (hypopigmentation due to melanocyte death)

Question 11

Acrochordons

Answer 11

skin tags. Related to insulin resistance (along w/ acanthosis nigricans)

Question 12

Acanthosis nigricans

Answer 12

velvety dark folds (esp on back of neck). think insulin resistance

Question 13

Angioma

Answer 13

red “mole”

Question 14

dermatofibroma: how to diagnose

Answer 14

dimple-sign on pinching,

Question 15

Solar Lentigo

Answer 15

sun-spots or liver-spots. due to sun damage. benign.

Question 16

ABCDEs of melanoma

Answer 16

asymmetry, border, color, diameter, evolving

Question 17

Sebaceous hyperplasia: looks like? how to differentiate?

Answer 17

skin-colored, umbilicated, BCC; BCC is more solitary and friable and pearly

Question 18

keloid

Answer 18

scar tissue overgrowth beyond original scar site

Question 19

Epidermal inclusion cyst: where? tx? small EIC is called?

Answer 19

arise from hair follicles, discharge of debris. surgical excision. Milia

Question 20

Lipoma

Answer 20

soft rubbery mobile subQ nodules. completely benign