In this cohort study, researchers identified 6146 patients from 17 registries of the SEER Program who had been diagnosed with a first primary cutaneous Merkel cell carcinoma between 2000 and 2018.
The goal of the study was to compare outcomes in very-high-, high-, and low-risk NCCN groups as well as outcomes of CSCCs stratified by treatment with Mohs and wide local excision.