Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are somewhat low with bronchovascular crowding . There is elevation the right hemidiaphragm . Opacity in the right medial lung base is consistent with atelectasis as seen on prior CT . There is no pleural effusion or pneumothorax . The cardiomediastinal silhouette is enlarged . The NG tube is in adequate position .
    OUTPUT:
    
NG tube in adequate position . No acute cardiopulmonary process .