Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Symmetric bilateral hilar fullness is again seen , stable . There is persistent increase in interstitial markings bilaterally which may be due to mild edema however , atypical infection is not excluded . There is persistent mild left costophrenic angle linear atelectasis / scarring . No large pleural effusion is seen . There is no new focal consolidation . The cardiac and mediastinal silhouettes are stable .
    OUTPUT:
    
No acute cardiopulmonary process .