Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right Port - A - Cath terminates in the right atrium . The lungs are normally expanded . Streaky opacities at the lung bases , right greater than left , are likely atelectasis . There is no evidence of new focal airspace opacity to suggest pneumonia . The cardiomediastinal silhouette , hilar contours , and pleural surfaces are normal . There is no pleural effusion or pneumothorax . Surgical clips project in the upper abdomen .
    OUTPUT:
    
Streaky opacities at the lung bases likely atelectasis . No convincing evidence of pneumonia .