Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heterogeneous right lower lobe opacities are concerning for an infectious process . A ___- mm nodular opacity projecting over the right mid lung on the frontal radiograph is new compared to the prior study from ___ , possibly also infectious in nature , although a pulmonary nodule is not excluded . There is minimal left lower lung atelectasis . Mild cardiomegaly is not significantly changed . The mediastinal contours are normal . Blunting of the right costophrenic angle could be due to a small pleural effusion . There is no pneumothorax .
    OUTPUT:
    
1 . Right lower lobe pneumonia . A right mid lung nodular opacity could also be infectious in nature , although a followup radiograph after antibiotic therapy is recommended to exclude an underlying pulmonary nodule . 2 . Unchanged mild cardiomegaly . 3 . Possible small right pleural effusion . Pertinent findings were discussed with Dr . ___ by Dr . ___ at 4 :46 a .m . via telephone on ___ .