Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest demonstrates obscuration of the right hemidiaphragm . There is interval increase in right lung opacity with loculated pleural fluid along the lateral right hemithorax . A rounded posterior density a noted in the right lower lung , ?? unclear etiology . The heart size is top normal . There are no suspicious osseous lesions .
    OUTPUT:
    
Significant interval progression of right lung opacity and right pleural effusion which appears loculated . Further characterization with CT is recommended .