Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral views of the chest provided . Lung volumes are low . Patient 's chin obscures the superior mediastinum limiting assessment . There is interval development of mild hilar congestion with with probable mild interstitial pulmonary edema . No large effusion or pneumothorax is seen . No convincing signs of pneumonia . Cardiomediastinal silhouette appears grossly stable . The imaged bony structures appear relatively unchanged with significant degenerative disease at the right shoulder .
    OUTPUT:
    
Mild congestion and interstitial pulmonary edema .