A Rare Cause of a Growing Solitary Pulmonary Nodule

This is the authors' abstract. We don't add key points for this paper.

Solitary pulmonary nodules are common on chest imaging, from lung cancer screening computed tomography scans to incidental findings on examinations performed for other reasons. Here, a 76-year-old man presented to the emergency department with fevers and cough, and computed tomography scan of the chest revealed a left upper-lobe consolidation and a 15-mm right lower-lobe nodule. The consolidation resolved with antibiotics; however, the nodule slowly grew over 2 years. Subsequent biopsy findings revealed neoplastic-appearing lymphoid cells with immunohistochemistry stains consistent with primary pulmonary mucosa-associated lymphoid tissue lymphoma. Given the slow growth of this neoplasm, the patient was managed with active surveillance.