Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac size is top normal . The aorta is tortuous . There is probably a small hiatal hernia . Aside from minimal opacities in the right base better seen in the lateral view , The lungs are clear . There is no pneumothorax or pleural effusion . There are mild degenerative changes in the thoracic spine
    OUTPUT:
    
Opacities in the right base could represent atelectasis , pneumonia can be considered in the appropriate clinical setting . Probable Hiatal hernia .