Recurrence and mortality rates with different treatment approaches of Merkel cell carcinoma: a systematic review and meta-analysis.

Background: Comprehensive treatment recommendations for Merkel cell carcinoma are complex. We aimed to systematically review the published data on recurrence and mortality rates associated with various treatment approaches for Merkel cell carcinoma.

Methods: Search of MEDLINE, Embase, Web of Science, and Scopus from inception to August 2015.