The radiograph demonstrates evidence of previous surgery on the sternum. There also is evidence of scarring or discoid atelectasis along the left mid lung.
Of note, though, is a soft tissue mass (about 5 to 6 cm) within the left pulmonary apex. This lesion could represent a rounded infiltrate, an atypical infection such as a mycetoma, or possibly a pulmonary neoplasm.
Since the patient was stable, he was placed on antibiotics with instructions to follow up with his primary care provider for further work-up on the mass. The patient did follow up; the lesion persisted and subsequent biopsy confirmed carcinoma.