Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Allowing for the differences in patient position and technique gradually widened mediastinum over a course of last week is unchanged since at least ___ . Moderate right pleural effusion has increased where as moderate left pleural effusion is stable . Increased retrocardiac density suggesting left lower lung atelectasis is similar . Monitoring and supporting devices are in standard position and unchanged to prior studies . The patient has been extubated .
    OUTPUT:
    
1 . Since ___ , moderate right pleural effusion has increased where as moderate left pleural effusion is unchanged , widened mediastinal contour and left lower lung atelectasis is stable .