Squamous Cell Carcinoma (2)

Question 1

origin

Answer 1

keratinocytes

Question 2

lesions on what area of body

Answer 2

sun-exposed areas

• common: nose, forehead, lower lip

Question 3

invasive?

Answer 3

more invasive than other types

• intra-epidermal and invasive types (usually picked up before this occurs)

Question 4

lesion

Answer 4

non-uniform

• can be nodular, ulcerative, or resemble papules

Question 5

progression

Answer 5

faster than basal cell carcinoma

Question 6

mets

Answer 6

if left in place, it will mets

• Initially proximal affecting regional lymph nodes, and then mets into blood circulation which can move into distant secondary sites