Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes of substantially improved since the prior exam . The lungs are well - expanded and clear . No focal consolidation , edema , effusion , or pneumothorax . The heart remains moderately enlarged . The mediastinum is not widened . Hilar contours are within normal limits . No acute osseous abnormality . Surgical clips projecting over the upper abdomen .
    OUTPUT:
    
No acute intrathoracic process . Persistent moderate cardiomegaly without overt edema .