Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are slightly low . There is no focal consolidation , pleural effusion or pneumothorax . A subtle nodular opacity overlying the left sixth anterior rib and a second subtle nodular opacity overlying the right seventh posterior rib may represent nipple shadows . The cardiomediastinal silhouette is normal . Imaged bones are intact .
    OUTPUT:
    
1 . No acute cardiopulmonary process . 2 . Possible bilateral nodular opacities which may represent nipple shadows . Recommend shallow oblique chest radiograph with nipple markers .