Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: NODULAR OPACITY PROJECTING OVER THE LOWER LUNG FIELDS , SYMMETRICALLY BILATERALLY , ARE LIKELY DUE TO NIPPLE SHADOWS ; THIS CAN BE CONFIRMED WITH REPEAT WITH NIPPLE MARKERS . OTHERWISE , NO FOCAL CONSOLIDATION , pleural effusion or pneumothorax is seen . The cardiac and mediastinal silhouettes are unremarkable .
    OUTPUT:
    
Nodular opacity projecting over the lower lung fields , symmetrically bilaterally , are likely due to nipple shadows ; this can be confirmed with repeat with nipple markers . Otherwise , no acute cardiopulmonary process .