ACR Appropriateness Criteria^® Palpable Breast Masses

Area of Science:

• Oncology
• Radiology
• Medical Diagnostics

Background:

• Breast cancer is a leading cause of death in women, with new palpable masses often indicating malignancy.
• While most breast lumps are benign, a thorough clinical exam and imaging are crucial for diagnosis.
• Distinct physical findings are not always present, necessitating imaging for palpable lesions.

Purpose of the Study:

• To outline evidence-based guidelines for the imaging evaluation of a palpable breast mass.
• To define the appropriate use of diagnostic mammography and ultrasound in this clinical context.
• To clarify the limited role of advanced imaging technologies for initial palpable mass assessment.

Main Methods:

• Review of current medical literature from peer-reviewed journals.
• Application of the RAND/UCLA Appropriateness Method and GRADE methodology.
• Annual review by a multidisciplinary expert panel of the American College of Radiology Appropriateness Criteria.

Main Results:

• Diagnostic mammography and targeted ultrasound are the recommended initial imaging options for palpable masses.
• Imaging choice depends on patient age and radiologic suspicion.
• Advanced imaging like MRI has a limited role in the initial evaluation of a palpable mass.

Conclusions:

• Imaging evaluation is essential for characterizing palpable breast lesions.
• Biopsy is indicated for suspicious findings identified on imaging.
• Guidelines are evidence-based, incorporating expert opinion when evidence is equivocal.