Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A left - sided Port - A - Cath tip terminates in the proximal right atrium . Large hiatal hernia is re - demonstrated . The cardiac silhouette size remains mildly enlarged . The aorta is diffusely calcified and tortuous . There is no pulmonary vascular congestion . Streaky left basilar opacity likely reflects atelectasis . There is no pleural effusion or pneumothorax . No displaced fractures are seen . There are moderate multilevel degenerative changes in the thoracic spine .
    OUTPUT:
    
Streaky left basilar opacity likely reflects atelectasis . Large hiatal hernia .