Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable upright view of the chest . A new left upper zone opacity is present . There is resolution of a right - sided pleural effusion . A small left pleural effusion persists . The heart is mildly enlarged . The hilar and mediastinal contours remain within normal limits . There has been interval removal of a left IJ central venous catheter . A right PICC terminates within the lower SVC .
    OUTPUT:
    
1 . New left upper zone opacity , concerning for aspiration or infection . 2 . Resolution of a right pleural effusion . Unchanged small left pleural effusion