Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . Low lung volumes results in bronchovascular crowding . An opacity projecting over the lower lungs on the lateral view only without a correlate on the frontal view radiograph may represent atelectasis or focal pneumonia . Fullness in the region of the azygous vein suggests increased central venous volume without overt pulmonary edema . There is no pleural effusion or pneumothorax . Heart size is upper limits of normal . Mediastinal silhouette and hilar contours are normal .
    OUTPUT:
    
1 . Opacity projecting over the lower lungs only on the lateral view may represent atelectasis or basal pneumonia . A repeat lateral radiograph with better inspiration may be helpful for further evaluation . 2 . Increased central venous volume without overt pulmonary edema .