Skin cancer 3

Question 1

In what tumor do you see keratin pearls on skin biopsy, and may see ulcerative red lesions, esp. on face, ears, or lower lip?

Answer 1

Squamous cell carcinoma (SCC)

Usually on face, lower lip, ears, hands

Can be associated with arsenic exposure

often spread to lymph nodes, but usually not further (unlike melanoma)

*Actinic keratosis is a precursor to SCC