Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The inspiratory lung volumes are appropriate . No focal consolidation concerning for pneumonia , pleural effusion , or pneumothorax is detected . There is faint increased opacity in the medial left lung apex compared to the right . The pulmonary vasculature is not engorged and there is no evidence of pulmonary edema . The cardiac silhouette is normal in size . The mediastinal and hilar contours are within normal limits . Note is made of a healed but non-united fracture of the distal end of the right clavicle , which is unchanged from prior examinations . There is no evidence of bridging callus across the fracture line . Mild degenerative changes are noted in the thoracic spine .
    OUTPUT:
    
1 . No acute cardiopulmonary process . 2 . Faint opacity in the left lung apex . Attention on followup is recommended . 3 . Chronic non-united fracture of the distal right clavicle .