Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest are obtained . Relative lucency along the right lateral hemithorax is felt to be artifactual and likely relates to patient 's overlying arm . The left lung is clear . Overall , there are low lung volumes . The cardiac and mediastinal silhouettes are stable and unremarkable . No pleural effusion is seen .
    OUTPUT:
    
1 . Lucency along the lateral right hemithorax is felt to most likely be artifactual , particularly in the absence of concern for pneumothorax or recent trauma . 2 . No focal consolidation to suggest pneumonia , and no evidence of enlargement of the cardiac silhouette . The above findings were discussed with Dr . ___ via telephone by Dr . ___ at 9 :28 p .m . on ___ .