Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Assessment is limited by patient rotation , as well as the patient 's neck and chin obscuring assessment of the lung apices . Lung volumes remain low . Moderate cardiomegaly is unchanged , with similar rightward shift of mediastinal structures . A large hiatal hernia occupies the base of the left hemithorax with associated left basilar atelectasis . Pulmonary vasculature is not engorged . There is no focal consolidation , large pneumothorax or pleural effusion . Degenerative changes are again noted within the right shoulder .
    OUTPUT:
    
Limited examination . Large hiatal hernia with left basilar atelectasis .