Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A lung volumes are slightly low , which may in part be secondary to lack of full inspiration . The lungs are clear . No focal consolidation , pleural effusion , or pneumothorax . The heart is moderately to severely enlarged . The descending aorta is slightly tortuous or ectatic . The pulmonary vessels are slightly prominent bilateral but not overtly enlarged .
    OUTPUT:
    
No acute intrathoracic process .