Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable supine view of the chest . Right upper extremity PICC line is new from prior exam with its tip in the mid SVC region . Vague opacity in the left lower lung could represent a very early pneumonia . Otherwise the lungs are clear . No large effusion or pneumothorax is seen on this supine radiograph . Cardiomediastinal silhouette is normal . Bony structures appear intact . A clip is seen in the left upper quadrant .
    OUTPUT:
    
Very subtle opacity in the left lower lung which could represent a very early pneumonia in the right clinical setting . PICC line positioned appropriately .