BCC

Question 1

what is helpful to determine a BCC

Answer 1

stretch the skin around the lesion, and look for a rolled, pearly border

Question 2

what is first step when suspect BCC

Answer 2

biopsy

Question 3

why biopsy vs. surgical excision

Answer 3

don’t cut too much out if benign

Question 4

5 DDx of BCC

Answer 4

1. intradermal nevus
2. sebaceous hyperplasia
3. angiofibroma
4. seborrheic keratosis
5. SCC

Question 5

feat. of intradermal nevus

Answer 5

• pigmented or skin colored
• early in life
• no rolled border

Question 6

feat. of sebaceous hyperplasia

Answer 6

• may be telangectagia

- somtimes a central dimple

Question 7

feat. of angiofibroma

Answer 7

• flesh-colored to light red, firm papule
• oft. on nose
• may be multiple

Question 8

feat. of seborrheic keratosis

Answer 8

• rough irregular surface
• stuck on appearcnce
• not bpearly
• no telantectasia

Question 9

etiology of BCC

Answer 9

• most common
• UV damage
• PTCH tumor supressor gene mutation

Question 10

5 BCC risk factors

Answer 10

1. fair skin
2. UV
3. ionizing rads or arsenic
4. immun supression
5. genetic conditions

Question 11

5 BCC subtypes

Answer 11

1. nodular
2. superficial
3. ulcerated
4. pigmented
5. morpheaform

Question 12

feat. of nodular

Answer 12

• most common type
• pearly papule or nodule
• head and neck

Question 13

feat. of superficial

Answer 13

• pink or translucent in color, rolled border
• patch or thin plaque, may be scaly
• DDx - SCC, or AK

Question 14

feat. of ulcerated

Answer 14

• feat of BCC

- leasion is grossly or micro ulcerated

Question 15

feat. of pigmented

Answer 15

• BCC with globules of dark pigment

- DDx is melanoma

Question 16

feat. of morpheaform

Answer 16

• looks like a scar bound down with white

Question 17

Tx of BCC

Answer 17

surg 
- excision with 3-4mm borders
- mohs - test in lab
non surg
- imiquimod cream
- 5-fu
rads
- not for young

Question 18

BCC course

Answer 18

• locally invasive
• mets are rare
• at risk for dev. of other skin CA