Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient has been extubated . There is central pulmonary vascular congestion with mild edema , minimally changed since ___ . Left lower lobe atelectasis has markedly improved . A small left pleural effusion is unchanged . Mild cardiomegaly appears stable . There is no pneumothorax .
    OUTPUT:
    
Markedly improved left lower lobe atelectasis . Mild pulmonary edema . Unchanged mild cardiomegaly .