Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is mildly enlarged . There are enlarged hilar structures bilaterally , previously shown to reflect lymphadenopathy , which appears similar in extent . Streaky left retrocardiac density suggests atelectasis . There is a patchy new perihilar nodular area of opacification nodular component of 8 mm . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
Patchy new mixed vague and nodular opacities in the right lower lung , possibly due to sarcoidosis , although infectious or inflammatory processes can not be excluded . Persistent moderate mediastinal and bilateral hilar lymphadenopathy . Noting that there were multiple pulmonary nodules on the prior chest CT as well as a persistent marked mediastinal and hilar lymphadenopathy , if more recent prior chest CT imaging is not available from an outside source , then followup chest CT should be considered when clinically appropriate . Otherwise , followup radiographs are recommended in order to assess for resolution or persistence of superimposed right perihilar opacities .