Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is no focal consolidation or pleural effusion . Mildly prominent bilateral interstitial lines are not significantly changed from the prior exam . There is no pneumothorax . The heart and mediastinum are within normal limits . Regional bones and soft tissues are unremarkable .
    OUTPUT:
    
No radiographic evidence of pneumonia . However , if clinical suspicion remains high , a dedicated chest CT may be obtained for further evaluation .