Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Tracheostomy tube is present . There is a left central line with tip in the upper SVC . There is no pneumothorax . There are small bilateral pleural effusions . The heart is mildly enlarged . There is pulmonary vascular redistribution and hazy patchy alveolar infiltrate most marked in the left lung and right lower lobe .
    OUTPUT:
    
The overall appearance of the chest is worsened compared to the study from 4 months ago . It is unclear how much of this is due 2 pulmonary edema or if an infectious infiltrate is also present .