Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Since ___ , the small left pleural effusion and left basilar atelectasis are improved . Lung volumes remain low with mild bibasilar atelectasis . Cardiomegaly and cardiomediastinal silhouettes are unchanged . Mild pulmonary vascular congestion and pulmonary edema are unchanged . A left - sided PICC now terminates near the superior cavoatrial junction . The distal end of the Dobhoff tube projects over the proximal stomach .
    OUTPUT:
    
A left - sided PICC terminates near the superior cavoatrial junction . Small left pleural effusion is decreased in size . Mild pulmonary edema is unchanged .