Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . Port - A - Cath is unchanged with tip residing in the mid SVC region . Lung volumes are low with bibasilar atelectasis again noted and small to moderate bilateral pleural effusions which appear unchanged . The possibility of a superimposed pneumonia is impossible to exclude . Mid to upper lungs appear well aerated . No significant change from prior exam . Cardiomediastinal silhouette is unchanged . Bony structures are intact . No free air below the right hemidiaphragm .
    OUTPUT:
    
Stable findings of bilateral pleural effusions and lower lung atelectasis , can not exclude pneumonia .