Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiographs demonstrate clear lungs with decreased expansion compared with prior , which accentuate the pulmonary vasculature . There is no focal consolidation , pleural effusion or pneumothorax . The cardiac silhouette and mediastinal contours are unchanged , the aorta appears tortuous .
    OUTPUT:
    
Decreased lung volumes , without acute chest abnormality .