30 - 204 - MOHS MICROGRAPHIC SURGERY

Question 1

cornerstone of therapy for solid tumors

Answer 1

Complete surgical removal

Question 2

degree of scalpel during incision in MMS

Answer 2

incision of the skin is made at a 45-degree angle, creating a beveled, or sloping, surface to the excised specimen

Question 2

margin of MMS

Answer 2

1- to 2-mm margin

Question 3

risk factors identified to predict microscopic tumor extension beyond the grossly visible margin of the tumor,

Answer 3

• poorly defined clinical margins;
• diameter greater than 2 cm;
• location on the high-risk, or “H” zone of the face, encompassing the nose, eyelids, eyebrows, temples, lips, ear, and periauricular skin

Question 4

margins for nodular BCC during excision

Answer 4

4 mm

Question 5

margins for infiltrative and micronodular subtypes

Answer 5

5 - 10 mm

Question 6

Four factors that appear most strongly associated with adverse outcomes in SCC

Answer 6

• diameter greater than 2 cm,
• depth of invasion below the subcutaneous adipose,
• perineural invasion,
• poor histologic differentiation

Question 6

High-risk areas of the face

Answer 6

H zone of the face (eyelids, eyebrows, nose, lips, chin, ears and periauricular skin, and temples), genitalia, hands, feet, ankles, and nipple and areola region

Question 7

Medium-risk areas

Answer 7

cheeks, forehead, and jawline, scalp, neck, and pretibial surfaces

Question 7

low risk areas

Answer 7

trunk and extremities