Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A single portable supine chest radiograph was obtained . Mild pulmonary vascular congestion has slightly progressed since the prior exam . Moderate cardiomegaly is unchanged . A right - sided PICC line ends at the brachiocephalic / SVC junction . A tracheostomy tube remains in the upper airway . No new consolidation , effusion , or pneumothorax is present . Patchy retrocardiac opacity likely secondary to atelectasis .
    OUTPUT:
    
Subtle progression of mild pulmonary vascular congestion .