Objective:

To update breast cancer reporting protocols in alignment with the latest WHO classifications and recommendations.

Approach:

• Updates Overview: The College of American Pathologists (CAP) has revised its protocols for breast cancer reporting, focusing on ductal carcinoma in situ (DCIS) and invasive breast cancer.
• Key Changes: Revisions include tumor characterization, grading, assessment of disease extent, and reporting of additional lesions.
• Standardization Goals: The updates aim to support consistent synoptic reporting for diagnosis, staging, and treatment planning.

Key Findings:

• The updated protocols reflect current classification criteria.
• Standardized reporting helps capture key diagnostic and prognostic data.
• Changes are required for laboratory accreditation with specific implementation timelines.

Interpretation:

The updates are intended to support consistent synoptic reporting for breast cancer diagnosis, staging, and treatment planning.

Limitations:

• Laboratories must review accreditation effective dates for new protocols.
• Changes extend beyond breast cancer to other cancer types, which may complicate implementation.

Conclusion:

CAP updates its Cancer Protocols quarterly to align with guidance from WHO and AJCC, providing evidence-based reporting templates.

Sources:

• College of American Pathologists