Metastatic Neoplasms to the Breast

Area of Science:

• Oncology
• Pathology
• Radiology

Background:

• Metastatic breast lesions can be misdiagnosed as primary breast neoplasms, especially when clinical information is limited.
• Non-hematopoietic metastatic neoplasms to the breast present diagnostic challenges.

Purpose of the Study:

• To present cases of non-hematopoietic metastatic breast neoplasms.
• To evaluate clinicopathological features that differentiate metastatic from primary breast neoplasms.

Main Methods:

• Retrospective analysis of breast resection materials diagnosed with metastatic non-hematopoietic neoplasms between 2010-2023.
• Evaluation of clinicopathological features of included cases.

Main Results:

• 15 cases of metastatic non-hematopoietic breast neoplasms were analyzed.
• Carcinoma (60%), melanoma (33%), and sarcoma (7%) were the most frequent metastatic malignancies.
• Primary sites for metastatic carcinoma included lung, gastrointestinal tract, female genital tract, and kidney.

Conclusions:

• Accurate diagnosis of metastatic breast neoplasms is crucial for patient management and prognosis.
• Histomorphological and immunohistochemical evaluation, combined with clinicoradiological data, are essential.
• Differentiating metastatic from primary breast tumors requires a comprehensive approach.