Abstract: |
Purpose of Review: The purpose is to present a case series of rare diagnoses and unusual presentations of breast lesions with radiologic-pathologic correlation from a major cancer center, and to review the recent literature on each entity with a focus on radiology-pathology concordance. We present our findings and experience from cases of metastatic small cell lung carcinoma to the breast, IgG-4-related breast disease, breast implant-associated anaplastic large cell lymphoma, granular cell tumor, pleomorphic sarcoma, adenomyoepithelioma, postradiation angiosarcoma, and breast carcinoma after risk-reducing total mastectomy. Recent Findings: It is essential for physicians to have knowledge of rare breast diagnoses and unusual breast disease presentations to formulate a complete differential diagnosis, recognize radiological-pathological concordance of these entities, and provide appropriate patient care. Summary: Current literature on these rare described entities exists mainly as case reports, case series, and small-scale studies. By sharing our findings, we hope to educate trainees in radiology, pathology, and other fields across the continuum of care in radiologic-pathologic correlation, while also augmenting the existing literature on these rare entities. © 2021, The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature. |