5 Key Takeaways

• 1

  Over 65% of Merkel cell carcinoma cases in the U.S. are attributed to ultraviolet radiation exposure.

• 2

  Approximately 63.8% of Merkel cell carcinoma cases are linked to the Merkel cell polyomavirus.

• 3

  The study analyzed 38,020 MCC cases diagnosed between 2001 and 2019 using population-based cancer registries.

• 4

  Immunosuppressive conditions significantly increased MCC risk, but accounted for only 2.5% of cases.

• 5

  Further studies are recommended to explore the interaction between UVR and MCPyV and evaluate prevention approaches.