Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiographs demonstrate mildly low lung volumes which exaggerates the cardiac silhouette . Allowing for this , the cardiomediastinal silhouette is within normal limits . There is no focal consolidation , pleural effusion , or pneumothorax . The visualized upper abdomen is unremarkable . Degenerative changes of the thoracic spine are seen .
    OUTPUT:
    
No acute cardiopulmonary process .