Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is moderately enlarged . The central pulmonary vessels are prominent ; however , there is no edema . Surgical clips within a right upper lobe mass are unchanged over multiple prior examinations . There is no pneumothorax or pleural effusion .
    OUTPUT:
    
No acute intrathoracic process . Unchanged moderate cardiomegaly .