OnlineMedEd: Dermatology - "Hyperpigmentation"

Question 1

If you see _______________ in a mole, then it is likely benign and you do not need to do anything.

Answer 1

hair

Question 2

Review the ABCDE of melanoma.

Answer 2

• A: asymmetric
• B: borders irregular
• C: color
• D: diameter > 5 mm
• E: evolving

If these are all negative, don’t bother with a biopsy. If more than one is positive, do a biopsy.

Question 3

True or false: seborrheic keratosis is benign.

Answer 3

True

However, when they first appear they can be difficult to differentiate from SCC so biopsies are often done.

Question 4

Describe seborrheic keratosis.

Answer 4

• Stuck on appearance
• Greasy
• Often large

Question 5

What color are actinic keratosis (usually)?

Answer 5

Yellow-brown

Though they can often be skin-colored (giving the “felt-but-not-seen” effect).

Question 6

Actinic keratosis is treated with _____________.

Answer 6

cryoablation and topical 5-FU (after biopsy confirms that it is not malignant)

Question 7

Which of the benign skin cancers can metastasize?

Answer 7

SCC

Question 8

How is keratoacanthoma different from SCC?

Answer 8

It arises quickly and goes away on its own.