Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal views of the chest were obtained . No focal consolidation , pleural effusion , or evidence of pneumothorax is seen . Old deformity of the posterolateral left fifth ribs is again seen , unchanged , may be sequela of prior trauma . Cardiomediastinal silhouette is stable and unremarkable .
    OUTPUT:
    
No acute cardiopulmonary process .