NCCN Guidelines® Insights: Merkel Cell Carcinoma, Version 1.2024

Area of Science:

• Oncology
• Dermatology
• Medical Guidelines

Background:

• Merkel cell carcinoma (MCC) is a rare but aggressive skin cancer.
• Current NCCN Guidelines require annual updates to reflect the latest research and clinical insights.
• Expert review and external submissions inform guideline revisions.

Purpose of the Study:

• To detail recent updates to the NCCN Guidelines for Merkel cell carcinoma (MCC).
• To introduce a new algorithmic page for "Clinical N0 Disease, Locally Advanced MCC."
• To clarify definitions and management strategies for locally advanced and in-transit MCC.

Main Methods:

• Annual review and revision process by the NCCN panel.
• Incorporation of expert feedback and external submissions.
• Development of new guideline content and updates to existing sections.

Main Results:

• Introduction of a new section for "Clinical N0 Disease, Locally Advanced MCC."
• Clarification of the term "nonsurgical" in the context of locally advanced MCC.
• Inclusion of updated management for in-transit disease and systemic therapy options.

Conclusions:

• The updated NCCN Guidelines provide refined recommendations for diagnosing and treating MCC.
• The new guidance addresses specific challenges in managing locally advanced and in-transit MCC.
• These revisions aim to optimize patient care through evidence-based strategies.