Background: The purpose of this systematic review was to summarize previously published case reports of primary lung carcinoma metastasis to the breast to assess common clinical and pathologic features and management strategies.
Materials And Methods: Case reports describing breast metastasis of primary lung carcinoma were systematically evaluated in MEDLINE and EMBASE.
Results: Thirty-one reported cases of non-small-cell lung carcinoma (NSCLC) metastasized to the breast were identified, along with eight cases of small-cell lung carcinoma.