Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac , mediastinal and hilar contours appear stable . Opacification in the right lung has resolved . There is vague increase in interstitial opacification of the left lung including small nodular foci in the left upper lobe worrisome for a reurrent / chronic infection , new since the prior study . Previously , there were few nodular foci in the left mid lung that have resolved . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
Patchy opacities in the left lung , notably in the left upper lobe with nodular components . The distribution has shifted since the prior study but the type of opacification is somewhat similar . This may indicate recurring aspiration as a possible etiology in addition the possibilitiy of community - acquired bronchopneumonia or atypical infection .