Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Chest , portable upright . Lung volumes are low , causing bronchovascular crowding . The lungs are clear . Moderate cardiomegaly is unchanged . The aorta is tortuous . The hila are remarkable only for mild vascular engorgement without frank edema . There is no pneumothorax or pleural effusion .
    OUTPUT:
    
Unchanged moderate cardiomegaly , without evidence of congestive heart failure . There is no evidence of pneumonia .