Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable chest : There is minimal lower lobe atelectasis but the lungs are otherwise clear . The heart is top - normal in size and the aorta is unfolded . The hila are normal . There is no pneumothorax or pleural effusion . Pulmonary vascularity is normal .
    OUTPUT:
    
1 . No acute cardiopulmonary process . 2 . Mild cardiomegaly and lower lobe atelectasis .