Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Hyperexpanded lungs with cardiomegaly , particularly left atrial enlargement . No opacities are noted concerning for infectious process . S - shaped scoliosis along with calcified trachea is noted . Tortuous aorta is also noted . No pleural effusion or pneumothorax .
    OUTPUT:
    
No acute intrathoracic process .