Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Moderate cardiomegaly is been stable compared to exams dating back to at least ___ . There is improvement in mild pulmonary vascular congestion , seen on prior . The right - sided central line terminates in the low SVC . No focal consolidations concerning for pneumonia are identified . Please note that the left lung base is not well assessed on this exam . There is a tracheostomy . There is no large pleural effusion or pneumothorax .
    OUTPUT:
    
Left lung base not well assessed , otherwise unremarkable .