Robotic Bronchoscopy biopsy came back negative, still with questions

My wife (63) was first diagnosed with Stage 1C breast cancer. Tumor has been surgically removed with clear margin, with no lymph nodes involvement. She is waiting for genomic test result in order to decide on the next treatment method for her breast cancer.

During diagnostic period, they did a CT Scan and 2 lung nodules were found. A subsequent PET scan identified both as rounded solid right upper lobe nodule; one with 11x8 mm SUV 4.8, and the 2nd 6x6 mm SUV 1.9.
She went thru a Robotic Bronchoscopy biopsy on the larger nodule and few near-by lymph nodes. The doctor said the small nodule was not safe to reach so he did not do the biopsy on that. Yesterday her pulmonologist sent her a message. There is no cancer, and the nodule is likely due to inflammation. We will meet with pulmonologist on 12/3.
We have more questions and will ask the doctor: Can the nodules develop into lung cancer later if they are left in the lung? Is it possible to remove the nodules even though no cancer is identified? If they can not be removed, is there any non surgical method that can shrink the nodules? The smaller one was not biopsied. Can it actually be cancerous at this time? Will she need to be scanned regularly to monitor the nodule growth?