Review on Practical Approach in Multiple Breast Carcinomas: Does Each Focus Matter?

Area of Science:

• Oncology
• Pathology

Background:

• Breast carcinoma is the most common cancer in women globally.
• While unifocal tumors are frequent, multiple foci represent a significant proportion of breast cancers.
• Existing data on multiple breast carcinomas are contradictory regarding incidence, definition, and clinical impact.

Purpose of the Study:

• To present a practical approach for pathologists managing multiple breast carcinoma foci.
• To address the morphological and molecular heterogeneity observed in multiple tumor lesions.
• To clarify the impact of multiple foci on breast cancer management and prognosis.

Main Methods:

• Review of current literature and clinical practices for multiple breast carcinomas.
• Analysis of pathological features and molecular profiles of multifocal lesions.
• Development of a reporting and management strategy for pathologists.

Main Results:

• Multiple breast carcinoma foci can exhibit significant heterogeneity.
• Separate reporting of each tumor focus is crucial.
• Consideration of individual foci is necessary for accurate treatment determination.

Conclusions:

• A standardized approach is needed for diagnosing and managing multiple breast carcinomas.
• Pathological and molecular heterogeneity impacts treatment decisions.
• Separate reporting and tailored treatment strategies are essential for improved patient outcomes.