Benign Skin Lesions

Question 1

M/C benign tumor of older people

Answer 1

Seborrheic Keratosis

Question 2

Doughy brown black plaques, “stuck on” appearance

“Keratin Pearls” = pathognomonic

Answer 2

Seborrheic Keratosis

Question 3

Where is Seborrheic Keratosis m/c located?

Answer 3

• Face
• Trunk
• Upper extremities

Question 4

Where are fibroepithelial polyps “skin tags” commonly found?
Who is m/c affected?

Answer 4

• Intetrigenous area, axillae, inguinal folds, neck, eyelids
• M/C in elderly, pregnant, obese pts

Question 5

How do you treat skin tags?

Answer 5

• Cryosurgery
• Shave removal
• ED

Question 6

What is an Epidermoid Cyst?
What’re some causes?

Answer 6

• Giant clogged pore, collection of dead skin cells
• Genetics, Trauma, Inflammatory skin conditions like acne

Question 7

What does an Epidermoid Cyst look like? Other clinical features?

Answer 7

• Mobile, dome shaped papule/nodule that may have a central punctum (small dark opening)
• Non-tender unless rupturedd
• Cheesy odor

Question 8

Milia

Answer 8

Lil white baby acne (usu. on face, nose)

Question 9

What’s a Lipoma?
How do you get rid of it?

Answer 9

• Benign “fatty” tumor that’s soft and mobile, no punctum
• Surgical excision

Question 10

What’s a Dermatofibroma?
What sign is indicative of it?
What’s the more severe version of this called?
Where is it commonly found?

Answer 10

• Firm pigmented macule or dome-shaped papule/nodule
• (+) Dimple Sign: if you pinch it, it caves in
• Dermatofibrosarcoma protuberans (DFSP)
• On extremities (esp. legs in women)

Question 11

How do you treat a Dermatofibroma?

Answer 11

Surgical excision!

Question 12

What’s a keloid?
What does it look like?
Where is it m/c located?

Answer 12

• Overgrowth of benign fibrous tissue that’s typically itchy (excessive scar tissue)
• Firm solid pink/red papule/nodule/plaque
• M/C on chest, shoulders, back, ear lobes, jawline

Question 13

T/F: A keloid spread beyond site of injury

Answer 13

True!!

Question 14

What do we worry about with 6+ Cafe au lait (hyper pigmented light brown/dark brown macules)?

Answer 14

Neurofibromatosis (NF-1)

Question 15

Telangiectasias can be treated with?

Answer 15

Lasers

Question 16

The M/C cutaneous vascular proliferation

Answer 16

Cherry Angioma (benign dilated venules 0.1-0.4 cm)

Red macules or papules that inc in # over time

Question 17

What’s a Hemangioma?
What’s it look like?

Answer 17

• M/C benign tumor of infancy (often develops right after birth an has a rapid growth phase)
• Looks like a strawberry

Question 18

Does a Hemangioma go away on its own?

Answer 18

Yes! Spontaneous regression by 5-7 y/o

Question 19

When is a Hemangioma considered problematic?
If it’s problematic and tx is necessary, what can you give?

Answer 19

• Only if located on the eyes, lips, nose
• Topical/Intralesional sterorids
• Topical Timolol 0.5% (BB)

Question 20

Congenital capillary malformation

Answer 20

Port Wine Stain “Flame nevus” (often unilateral)

Question 21

T/F: A Port Wine Stain goes away

Answer 21

False! Grows and thickens over time, doesn’t go away

Question 22

What’s the difference between a callus and a clavus?
How’re they treated?

Answer 22

Callus: Nonpenetrating hyperkeratosis caused by pressure

Clavus (Corn): Circumscribed thickening of the skin with penetrating central core

• Avoid pressure
• Salicylic acid (405)
• Shave

Question 23

Velvety brown plaques that look like dirt

Answer 23

Acanthosis Nigricans

Question 24

Where is Acanthosis Nigricans commonly found?
What’s it associated with?

Answer 24

• Skin folds
• Associated with DIABETES, obesity, malignancy (encourage weight loss)