Interesting Case of Bilateral Pulmonary Infiltrates in an Immigrant, Former Healthcare Worker Patient

This case report describes a 67-year-old female patient with a history of bilateral breast cancer who presented with bilateral pulmonary infiltrates discovered on routine screening. Despite no reported symptoms and negative tests for tuberculosis, further imaging and biopsy revealed the infiltrates were metastatic breast cancer. This highlights the importance of considering a patient’s cancer history when evaluating new pulmonary lesions, as malignancy should be a key differential diagnosis. Appropriate imaging modalities, such as positron emission tomography scans, can guide the diagnostic approach, and a low threshold for tissue diagnosis is warranted in patients with known malignancy.