Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A markedly enlarged hiatal hernia is again demonstrated . The cardiac , mediastinal and hilar contours are otherwise unchanged , and the aorta remains markedly tortuous . Heart size is difficult to assess given the presence of the hiatal hernia , but is likely mild to moderately enlarged . Pulmonary vasculature is normal . Streaky atelectasis is seen within the left lower lobe adjacent to the hiatal hernia . Linear atelectasis is also noted within the right lung base . No focal consolidation , pleural effusion or pneumothorax is otherwise demonstrated . There are no acute osseous abnormalities .
    OUTPUT:
    
Markedly enlarged hiatal hernia . Otherwise no acute cardiopulmonary abnormality seen .