Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is mildly enlarged . The cardiomediastinal and hilar contours are within normal limits . Lung volumes are low which accentuates bronchovascular markings . There is no focal consolidation , pleural effusion or pneumothorax .
    OUTPUT:
    
No acute intrathoracic process identified . Mild cardiomegaly .