Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are low lung volumes . Bilateral ill - defined pulmonary opacities are again seen with possible increase in the left mid to lower lung zone . No pleural effusion or pneumothorax is seen . The cardiac and mediastinal silhouettes are stable . Left - sided Port - A - Cath terminates in the region of the deep right atrium .
    OUTPUT:
    
Bilateral ill - defined pulmonary opacity is again seen chronic , with more confluent opacification in the left mid to lower lung zone , acute infection not excluded . Low lung volumes .