Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: As compared to the previous radiograph , there is a newly appeared ill - defined diffuse right lower lobe opacity with air bronchograms . The opacity causes slight volume loss . In the right posterior aspect of the costophrenic sinus , a minimal effusion is visualized . Otherwise , the lung parenchyma is unremarkable . No evidence of other parenchymal abnormalities . Borderline size of the cardiac silhouette without evidence of pulmonary edema . No hilar or mediastinal abnormalities .
    OUTPUT:
    
Right lower lobe pneumonia with minimal right reactive pleural effusion . At the time of observation and dictation , 11 :45 a .m . , the referring physician , ___ . ___ , was notified by telephone and the findings were discussed .