Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Given differences in technique from exam from earlier the same day , there has been no significant interval change . Lower lung volumes are seen with secondary crowding of the bronchovascular markings and accentuation of the cardiomediastinal silhouette . Right mid lung opacity is likely atelectasis . Tortuosity of descending thoracic aorta is unchanged .
    OUTPUT:
    
Cardiomegaly without definite acute cardiopulmonary process .