Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal supine AP and lateral views of the chest were obtained . Opacity in the left upper lobe is concerning for pneumonia , although underlying mass can not be excluded . There is no pleural effusion or pneumothorax . Mild cardiomegaly is unchanged . Pulmonary vasculature is slightly indistinct with increased interstitial markings and Kerly B lines suggesting mild pulmonary edema . The right hilar contour and mild opacity is similar to ___ . A right dialysis catheter ends in the right atrium , unchanged . An abandoned dual - lumen catheter terminates in the lower SVC . A smaller catheter fragment projecting over the heart on the frontal view projects over the lung parenchyma on the lateral view is likely an embolized catheter fragment in a pulmonary vessel , unchanged in position since ___ . smaller one is embolized catheter fragment in a pulmonary vessel , no change ___ .
    OUTPUT:
    
1 . Left upper lobe pneumonia superimposed on mild pulmonary edema . Recommend follow up radiograph ___ weeks after treatment to evaluate for underlying parenchymal lesion . 2 . Embolized catheter fragment within a pulmonary vessel , likely from the abandoned dual lumen catheter , is unchanged in position since ___ . Per the report from that study , a CT was recommended at that time and may have been performed at an outside institution .