Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lateral view of the chest is suboptimal due to overlying external artifact . Frontal and lateral views of the chest were obtained . Lungs are clear without focal consolidation . No pleural effusion or pneumothorax is seen . Cardiac and mediastinal silhouettes are unremarkable .
    OUTPUT:
    
Lateral view of the chest is suboptimal due to overlying external artifact . Otherwise , no evidence of acute cardiopulmonary process .