Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . No focal consolidation , pleural effusion , or evidence of pneumothorax is seen . The cardiac and mediastinal silhouettes are unremarkable . Projecting over the left lower hemithorax , there is a rounded 3 .5 cm structure which on the lateral view appears to project over the skin of the left breast . Correlate for external artifact at this location .
    OUTPUT:
    
No focal consolidation to suggest pneumonia .