Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable AP chest radiograph shows a large caliber pigtail catheter projected over the left lung base which appears repositioned / unkinked compared to yesterday 's study . There is no more , and perhaps less , pleural fluid density on the left with some apparent loculation supralaterally . The medial left hemidiaphragm remains obscured . Baseline cardiomegaly is unchanged . Calcified atherosclerotic plaque is seen in the arch of the thoracic aorta .
    OUTPUT:
    
Probable slight interval decrease in partially loculated left pleural fluid .