Dermatoscopic white circles

Squamos cell carcinoma (SCC) is common in Australasia, being more clearly associated with high cumulative sun-exposure than melanoma. It is a significant cause of death, with one death from SCC for every three deaths from melanoma.

The death rate from SCC is low (about one in a thousand) but the prevalence of SCC in Australia is high (around 400,000 per year), so the total number of deaths (approximately 400) is second only to melanoma.

The diagnosis of non-pigmented lesions can be challenging because the dermatoscopic clues of pigment structures are not available.