Question: A 62 year old woman undergoes a phenol peel with Baker-Gordon solution. What is the deepest layer of the skin that this peel penetrates?

a) Stratum corneum
b) Stratum lucidum
c) Stratum basale
d) Papillary dermis
e) Reticular dermis

[Answer will be posted with next week's new question]

Answer to last week's question, "On Stage" (September 10, 2018)

If p16 positive: pT3N2, stage 2.
If p16 negative: pT3N2b, stage 4a