"Reductive" Reasoning: Identifying Normal Postoperative Changes Versus Malignancy After Reduction Mammoplasty

Area of Science:

• Radiology
• Breast Imaging
• Surgical Oncology

Background:

• Reduction mammoplasty (RM) is increasingly common.
• Accurate interpretation of postoperative breast imaging is crucial for radiologists.
• Distinguishing benign post-surgical changes from malignancy is a diagnostic challenge.

Purpose of the Study:

• To review common reduction mammoplasty techniques.
• To describe expected postoperative imaging findings on mammography, ultrasound, and MRI.
• To aid radiologists in differentiating benign changes from breast cancer after RM.

Main Methods:

• Pictorial essay format.
• Review of common RM surgical techniques.
• Correlation of surgical techniques with expected imaging findings.

Main Results:

• Common findings include parenchymal redistribution, architectural distortion, scar tissue, benign calcifications, and fat necrosis.
• Symmetric changes are often expected post-RM.
• Challenges exist in differentiating post-surgical scarring from malignancy, particularly in the lower breast quadrants.

Conclusions:

• Familiarity with RM techniques and expected imaging findings is essential for radiologists.
• Accurate interpretation prevents misdiagnosis of benign postoperative changes as malignancy.
• Identifying suspicious findings requires careful evaluation to differentiate from expected post-surgical changes.