Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest demonstrate low lung volumes , which accentuate bronchovascular markings . There is no focal consolidation , pleural effusion or pneumothorax . Hilar and mediastinal silhouettes are unremarkable . Heart size is normal .
    OUTPUT:
    
No evidence of acute cardiopulmonary process .