Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral views of the chest provided . Evaluation is somewhat limited due to underpenetration . There is persistent left mid and lower lung opacity which remains concerning for pneumonia . There is associated left mid and lower lung atelectasis . No large effusion is seen . No pneumothorax . Hilar congestion is suspected . Cardiomediastinal silhouette appears grossly unchanged . Bony structures are intact peer
    OUTPUT:
    
Persistent opacity in a left middle lower lung remains concerning for pneumonia . Possible hilar congestion .