Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is within upper limits of normal in size with left ventricular configuration , stable as before . Prominence of the aortic arch is again noted . No focal consolidations are seen . Lung volumes are slightly diminshed . There is no evidence of pneumothorax or pleural effusions . Visualized osseous structures are grossly unchanged and demonstrate mild degenerative change within the thoracic spine . There is no evidence of pneumoperitoneum under the diaphragm .
    OUTPUT:
    
Stable appearance of the chest without acute intrathoracic process .