Would you consider adjuvant radiation in a patient with stage 1 (<1 cm) Merkel cell carcinoma of the lateral upper arm status post resection to negative wide margins?

For a stage I Merkel cell carcinoma < 2cm size, long-term outcomes are good and close surveillance may be reasonable, based on the results of meta-analysis. For those with tumors >2 cm or greater, adjuvant RT can help improve loco-regional control and survival. Additionally, ongoing trials of anti-P...