Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest . The lungs are clear without consolidation , effusion or pneumothorax . Nodular density projecting over the right lung base most likely represents a nipple shadow . The cardiomediastinal silhouette is within normal limits . Acute distal left clavicular fracture is better seen on dedicated shoulder films from the same day .
    OUTPUT:
    
Left clavicular fracture , better characterized by same day left clavicle films . No acute cardiopulmonary process .