Extramammary metastases to the breast: Radiologic and histologic review

Area of Science:

• Oncology
• Radiology
• Pathology

Background:

• Extramammary metastases to the breast are uncommon.
• These metastases can mimic primary breast malignancies or benign lesions.
• Accurate diagnosis is crucial for appropriate patient management.

Purpose of the Study:

• To review the radiologic and pathologic features of common extramammary tumors metastasizing to the breast.
• To enhance diagnostic accuracy for these rare breast lesions.

Main Methods:

• Literature review of common primary tumors metastasizing to the breast.
• Analysis of radiologic and pathologic characteristics.
• Synthesis of diagnostic criteria.

Main Results:

• Common sources include lymphoma, melanoma, lung carcinoma, gynecologic carcinoma, and sarcomas.
• Distinct imaging and histopathologic findings are associated with each primary tumor type.
• Metastases can present as circumscribed masses, infiltrative lesions, or diffuse changes.

Conclusions:

• Recognizing the diverse presentations of extramammary metastases is essential.
• Multidisciplinary correlation of imaging and pathology improves diagnostic confidence.
• Awareness of these rare entities aids in avoiding misdiagnosis and ensures timely treatment.