Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single portable frontal chest radiograph demonstrates hypoinflated lungs with bibasilar atelectasis and crowding of vasculature . No new focal opacity . Large hiatal hernia with adjacent compressive atelectasis is again seen . No pleural effusion or pneumothorax . Heart size is top - normal . Mediastinal contour and hila are otherwise unremarkable . Limited assessment of osseous structures demonstrates old healed rib fractures along right posterior second through fourth ribs . New mildly displaced posterolateral rib fractures of sixth and seventh ribs .
    OUTPUT:
    
1 . Hypoinflated lungs with bibasilar atelectasis . 2 . Large hiatal hernia with adjacent compressive atelectasis . 3 . Mildly displaced right posterolateral sixth and seventh rib fractures . No pneumothorax .