Do you treat the surrounding erythema for cutaneous squamous or basal cell carcinoma?

Target delineation for cutaneous carcinomas often relies on physical examination, rather than imaging. Appreciation of the subtle signs of skin cancers is therefore important.

Dermatologic surgical guidelines suggest using erythema around cutaneous SCCs as a part of the gross disease. For this reason, I typically include this as part of my GTV.

However, taking the histolopathological findings from the diagnostic biopsy into consideration is important. For example, a small low-risk subtype BCC w...