Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared with the immediate prior study of ___ , there is decreased aeration of the left hemithorax . Increased opacification of the left upper lung correlates to the large loculated anterior fluid collection seen on recent CT dated ___ , which appears to have increased compared with prior studies . A pleural drain is in unchanged position at the left base . Mild cardiomegaly and left sided rib fractures are unchanged . There is no pneumothorax . The tracheostomy tube ends 3 .9 cm from the carina , and the left IJ CVC ends in the upper SVC .
    OUTPUT:
    
Increased opacification of the left hemithorax with a probably enlarging anterior superior loculated fluid collection .